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datacenter-insider.de

datacenter-insider.de is SSL secured

Free website and domain report on datacenter-insider.de

Last Updated: 26th July, 2023 Update Now
Overview

Snoop Summary for datacenter-insider.de

This is a free and comprehensive report about datacenter-insider.de. The domain datacenter-insider.de is currently hosted on a server located in Germany with the IP address 81.173.115.24, where EUR is the local currency and the local language is German. Datacenter-insider.de has the potential to be earning an estimated $5 USD per day from advertising revenue. If datacenter-insider.de was to be sold it would possibly be worth $3,747 USD (based on the daily revenue potential of the website over a 24 month period). Datacenter-insider.de receives an estimated 1,796 unique visitors every day - a large amount of traffic! This report was last updated 26th July, 2023.

About datacenter-insider.de

Site Preview: datacenter-insider.de datacenter-insider.de
Title: DataCenter-Insider - das Rechenzentrums-Fachportal zu Software Defined Datacenter, Kühlung, USV, RZ-Netze, Tools, Applikationen, Middleware, OpenStack, Private Cloud, Virtualisierung
Description: Tipps, Wissen und Information zu Rechenzentren, Virtualisierung und Software Defined Datacenter: Tools und Anwendungen, IT- und RZ-Infrastruktur von USV bis zu Rechenzentrums-Kühlung, Hardware, Software, Services, Hyperkonvergenz und Hybrid Cloud
Keywords and Tags: internet services
Related Terms: colocatie datacenter, colocation datacenter, datacenter nederland, insider, insider information, insider tipps, openstack ansible, pw insider, software defined, virtualisierung
Fav Icon:
Age:
Domain Created:
Domain Updated:
Domain Expires:
Review

Snoop Score

2/5

Valuation

$3,747 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 409,685
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 1,796
Monthly Visitors: 54,665
Yearly Visitors: 655,540
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $5 USD
Monthly Revenue: $156 USD
Yearly Revenue: $1,868 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: datacenter-insider.de 21
Domain Name: datacenter-insider 18
Extension (TLD): de 2

Page Speed Analysis

Average Load Time: 1.20 seconds
Load Time Comparison: Faster than 65% of sites

PageSpeed Insights

Avg. (All Categories) 86
Performance 89
Accessibility 90
Best Practices 83
SEO 91
PWA 78
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.datacenter-insider.de
Updated: 12th August, 2022

1.50 seconds
First Contentful Paint (FCP)
85%
12%
3%

0.00 seconds
First Input Delay (FID)
100%
0%
0%

Simulate loading on desktop
89

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for datacenter-insider.de. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.0 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 1.1 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 50 ms
Users could experience a delay when interacting with the page.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://datacenter-insider.de/
http/1.1
0
348.47600001376
320
0
301
text/html
https://datacenter-insider.de/
http/1.1
348.76200003782
1154.8959999927
396
0
301
text/html
https://www.datacenter-insider.de/
http/1.1
1155.2140000276
2547.9010000126
91063
578466
200
text/html
Document
https://cdn2.vogel.de/scss/fonts/Fira-Variable/Firava.woff2
h2
2554.0790000232
2801.8190000439
62814
62176
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Fira-Variable/FiravaItalic.woff2
h2
2554.2490000371
2802.3120000144
66769
66104
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Bitter/bitter.woff2
h2
2554.3720000423
2778.0180000118
31406
30760
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Bitter/bitter-italic.woff2
h2
2554.5630000415
2800.2520000446
31188
30500
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Glyphter.woff
h2
2554.821000027
2761.0970000387
9112
8500
200
font/woff
Font
https://cdn2.vogel.de/scss/fonts/icons.woff
h2
2554.9430000247
2823.0900000199
67521
67904
200
font/woff
Font
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
h2
2565.1829999988
2790.6390000135
27716
162844
200
text/css
Stylesheet
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
h2
2565.334999992
2805.0430000294
31592
89475
200
application/javascript
Script
https://data-24fe804269.datacenter-insider.de/iomm/latest/bootstrap/stub.js
h2
2810.3700000211
3363.0710000289
683
323
200
application/javascript
Script
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
h2
2826.1700000148
3718.9310000394
57319
213788
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
h2
2826.5489999903
2863.2630000357
4138
7770
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/respiframe/jquery.responsiveiframe.js
h2
2826.9880000153
2860.3800000274
2132
3969
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/hoverintent/jquery.hoverintent.min.js
h2
2827.3170000175
2859.6660000039
1630
2244
200
application/javascript
Script
https://cdn2.vogel.de/js/menu.js?v=1.0
h2
2827.6509999996
2862.8380000009
1933
4666
200
application/javascript
Script
https://cdn2.vogel.de/js/custom.js?v=1.0
h2
2827.8970000101
2861.8780000252
8440
38621
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/lazysizes/plugins/print/ls.print.min.js
h2
2828.0290000257
2861.5200000349
1110
726
200
application/javascript
Script
https://cdn2.vogel.de/img/arrow_dropdown.svg
h2
2828.4540000022
2860.8400000376
957
408
200
image/svg+xml
Image
https://cdn2.vogel.de/applications/15/img/logo.svg
h2
2828.5850000102
2863.5450000293
3118
6569
200
image/svg+xml
Image
https://cdn2.vogel.de/applications/15/img/logo_mini.svg
h2
2828.7090000231
2862.208000035
2965
14799
200
image/svg+xml
Image
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
h2
2829.0400000405
3048.7040000153
15416
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image/png
Image
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2829.3249999988
3042.0060000033
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image/jpeg
Image
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h2
2829.4530000421
3049.6600000188
711
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image/jpeg
Image
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h2
2829.9320000224
3027.1390000125
697
390
200
image/jpeg
Image
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2830.100000021
3027.4039999931
697
521
200
image/jpeg
Image
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2830.8040000265
3024.0140000242
697
250
200
image/jpeg
Image
https://cdn1.vogel.de/n5XyM6XrnxUvR6ZeaJKXuU0uaUY=/129x94/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2830.9430000372
3049.3240000214
694
211
200
image/jpeg
Image
https://cdn2.vogel.de/img/vogel_logo.svg
h2
2831.2030000379
2863.8609999907
2731
5845
200
image/svg+xml
Image
https://data-24fe804269.datacenter-insider.de/iomm/latest/manager/base/es5/bundle.js
h2
2831.3879999914
3521.4060000144
21087
72521
200
application/javascript
Script
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp.min.css
h2
2831.9849999971
3124.8810000252
5930
27160
200
text/css
Stylesheet
https://consentmanager.mgr.consensu.org/delivery/cmp.php?id=28861&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&&usedesign=13778&l=en&o=1660293363858
http/1.1
2831.5380000276
3729.6440000064
1006
868
200
application/javascript
Script
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
h2
2831.7329999991
3338.8230000273
75757
403935
200
application/javascript
Script
https://cdn1.vogel.de/yTDyWHSNQd-R2eTRWsh8GbNosvs=/1200x400/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
h2
3780.1270000055
6132.0469999919
139874
142066
200
image/webp
Image
https://cdn1.vogel.de/CeYqSYAPUH9CC98zP1vbyeP7csc=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
h2
3780.2730000112
4784.7110000439
24116
26902
200
image/webp
Image
https://cdn1.vogel.de/x2EhB-U9SxyVtwr4FW7AkUNonxU=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
h2
3780.4999999935
3832.1100000176
19757
21604
200
image/webp
Image
https://mbakolyf0n-dsn.algolia.net/1/indexes/*/queries?x-algolia-agent=Algolia%20for%20vanilla%20JavaScript%203.32.1%3BJS%20Helper%20(2.27.0)&x-algolia-application-id=MBAKOLYF0N&x-algolia-api-key=28a535cc23a7cbb4992d66ce71fc893d
http/1.1
3790.2050000266
4476.8620000104
4717
19491
200
application/json
XHR
https://consentmanager.mgr.consensu.org/delivery/cmp.php?__cmpcc=1&id=28861&o=1660293364&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&&usedesign=13778&l=en&odw=0&dlt=1
http/1.1
3823.4850000008
4698.9809999941
3326
6760
200
application/javascript
Script
https://cdn1.vogel.de/lKtqZoH748G33kXgPTon3dvtkE4=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
h2
3984.4739999971
4078.3810000285
15636
18368
200
image/webp
Image
https://cdn1.vogel.de/nwxWYnG4WHBElJcQ__URHI6EdJg=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/a5/ff/a5ffef7bf9ad37d3493b0d86083190f3/0106284193.jpeg
h2
3984.5879999921
4037.1490000398
15900
18754
200
image/webp
Image
https://jobs.jobware.net/jobresources/logo/220/119220/840/001100840/133/1344_2_160x80.gif
h2
4483.3680000156
4844.9600000167
4475
4109
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/220/44220/681/001096681/51/5179_2_160x80.gif
h2
4483.5880000028
4828.1140000327
4027
3662
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/143/56143/591/001075591/64/16586_2_160x80.gif
h2
4483.7150000385
4824.9810000416
2981
2616
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
h2
4483.944000036
4824.4399999967
6574
6208
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/894/162894/504/012109504/1/160.gif
h2
4484.1219999944
4823.6250000191
3753
3388
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
h2
4484.327000042
4931.9750000141
11540
11172
200
image/jpeg
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/customdata/bV8xLndfMjg4NjEuZF8xMzc3OC54XzYudi5wLnRfMTM3Nzg.js
h2
4702.6199999964
4809.5530000282
9295
36750
200
application/javascript
Script
https://cp.datacenter-insider.de//now.js
h2
4702.9670000193
5223.1190000311
27065
75991
200
application/javascript
Script
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
h2
5240.094000008
5477.2180000436
2189
5410
200
application/javascript
Script
https://cp.datacenter-insider.de/stats
5495.717999991
5496.6190000414
0
0
-1
Preflight
https://cp.datacenter-insider.de/stats
5494.8480000021
5547.9870000272
0
0
-1
Ping
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
h2
5507.6420000405
5562.2910000384
77254
238030
200
application/javascript
Script
https://consentmanager.mgr.consensu.org/delivery/info/?id=28861&did=9&cfdid=9428&t=pv.d_ncs.d_ancs.d_bncs.d_pur.cf.cfx&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&o=1660293366528&l=EN&lv=36329&d=9&ct=14&e=&e2=&e3=&i=&sv=119&dv=6&&usedesign=13778
http/1.1
5522.5980000105
6423.47899999
353
43
200
image/gif
Image
https://consentmanager.mgr.consensu.org/delivery/info/?id=28861&did=9&cfdid=9&t=cv&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&o=1660293366529&l=EN&lv=36329&d=9&ct=14&e=&e2=&e3=&i=&sv=119&dv=6&&usedesign=13778
http/1.1
5522.7990000276
6421.5069999918
353
43
200
image/gif
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-light.svg
h2
5522.975000029
5817.3730000271
980
662
200
image/svg+xml
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-dark.svg
h2
5523.113000032
5825.4780000425
983
662
200
image/svg+xml
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/flags/en.gif
h2
5547.7930000052
5835.7960000285
1055
384
200
image/gif
Image
https://cdn1.vogel.de/19rxbFxFzCMlbkpYGNqZIHs0LBA=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/ca/41/ca41e60e741ed26ded1e055c348b0a3d/0106230999.jpeg
h2
6432.9880000441
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image/webp
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
2576.456
21.928
2815.954
5.811
2835.138
10.605
2845.793
8.109
2853.922
21.174
2877.851
7.408
2885.267
9.022
2894.296
5.753
2900.06
5.797
2912.101
10.601
2930.917
6.3
2937.471
10.776
2950.402
22.919
2978.371
12.664
2991.057
13.887
3005.232
32.984
3073.129
5.751
3376.354
8.053
3752.588
37.181
3792.218
13.247
3805.477
9.702
3815.195
21.363
3859.599
11.747
4006.614
5.695
4502.084
7.655
4523.169
9.691
5256.97
8.08
5503.45
45.025
5548.494
23.804
5573.099
11.225
5600.279
11.514
5612.299
13.119
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Properly size images — Potential savings of 128 KiB
Images can slow down the page's load time. Datacenter-insider.de should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://cdn1.vogel.de/yTDyWHSNQd-R2eTRWsh8GbNosvs=/1200x400/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
139874
50820
https://cdn1.vogel.de/19rxbFxFzCMlbkpYGNqZIHs0LBA=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/ca/41/ca41e60e741ed26ded1e055c348b0a3d/0106230999.jpeg
31084
18888
https://cdn1.vogel.de/CeYqSYAPUH9CC98zP1vbyeP7csc=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
24116
14654
https://cdn1.vogel.de/x2EhB-U9SxyVtwr4FW7AkUNonxU=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
19757
12005
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
10167
https://cdn1.vogel.de/nwxWYnG4WHBElJcQ__URHI6EdJg=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/a5/ff/a5ffef7bf9ad37d3493b0d86083190f3/0106284193.jpeg
15900
9661
https://cdn1.vogel.de/lKtqZoH748G33kXgPTon3dvtkE4=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
15636
9501
https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
6208
5649
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Datacenter-insider.de should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Datacenter-insider.de should consider minifying CSS files.
Minify JavaScript — Potential savings of 3 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Datacenter-insider.de should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn2.vogel.de/js/custom.js?v=1.0
8440
2656
Reduce unused CSS — Potential savings of 24 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Datacenter-insider.de should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
27716
24801
Reduce unused JavaScript — Potential savings of 92 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
77254
39622
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
57319
29215
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
75757
25045
Efficiently encode images — Potential savings of 7 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
6708
Serve images in next-gen formats — Potential savings of 20 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
15246
11439.9
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
9220.8
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Datacenter-insider.de should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 5 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
5475
https://cp.datacenter-insider.de//now.js
59
https://data-24fe804269.datacenter-insider.de/iomm/latest/manager/base/es5/bundle.js
49
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 1,013 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://cdn1.vogel.de/yTDyWHSNQd-R2eTRWsh8GbNosvs=/1200x400/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
139874
https://www.datacenter-insider.de/
91063
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
77254
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
75757
https://cdn2.vogel.de/scss/fonts/icons.woff
67521
https://cdn2.vogel.de/scss/fonts/Fira-Variable/FiravaItalic.woff2
66769
https://cdn2.vogel.de/scss/fonts/Fira-Variable/Firava.woff2
62814
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
57319
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
31592
https://cdn2.vogel.de/scss/fonts/Bitter/bitter.woff2
31406
Avoid chaining critical requests — 2 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Datacenter-insider.de should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.datacenter-insider.de/
259.422
31.012
5.551
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
103.599
56.753
0.79
Unattributable
93.912
2.582
0.142
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
90.028
42.468
0.117
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
56.64
52.449
0.51
Minimizes main-thread work — 0.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
271.18
Other
173.051
Style & Layout
143.443
Rendering
61.078
Parse HTML & CSS
42.372
Script Parsing & Compilation
14.392
Garbage Collection
10.259
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 59 requests • 1,013 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
59
1037729
Script
17
325956
Image
28
312821
Font
6
268810
Document
1
91063
Stylesheet
2
33646
Other
5
5433
Media
0
0
Third-party
50
894926
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
77254
0
SHOW DETAILS
5038
0
SHOW DETAILS
4717
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Besser geschützt mit „VMware Carbon Black Workload für AWS“. Das ist eine konso…
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Besser geschützt mit „VMware Carbon Black Workload für AWS“. Das ist eine konso…
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.0 s
The time taken for the first image or text on the page to be rendered.

Audits

First Meaningful Paint — 1.0 s
The time taken for the primary content of the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 290 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Datacenter-insider.de should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
27716
270
Avoid multiple page redirects — Potential savings of 340 ms
Redirects can cause additional delays before the page can begin loading. Datacenter-insider.de should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://datacenter-insider.de/
190
https://datacenter-insider.de/
150
https://www.datacenter-insider.de/
0

Metrics

Speed Index — 3.5 s
The time taken for the page contents to be visibly populated.

Other

Reduce initial server response time — Root document took 1,390 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.datacenter-insider.de/
1393.681
Serve static assets with an efficient cache policy — 42 resources found
Datacenter-insider.de can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://data-24fe804269.datacenter-insider.de/iomm/latest/manager/base/es5/bundle.js
0
21087
https://data-24fe804269.datacenter-insider.de/iomm/latest/bootstrap/stub.js
0
683
https://cp.datacenter-insider.de//now.js
300000
27065
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
1800000
75757
https://cdn.consentmanager.mgr.consensu.org/delivery/customdata/bV8xLndfMjg4NjEuZF8xMzc3OC54XzYudi5wLnRfMTM3Nzg.js
1800000
9295
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp.min.css
1800000
5930
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
3600000
57319
https://cdn2.vogel.de/js/custom.js?v=1.0
7200000
8440
https://cdn2.vogel.de/js/menu.js?v=1.0
7200000
1933
https://cdn1.vogel.de/yTDyWHSNQd-R2eTRWsh8GbNosvs=/1200x400/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
14400000
139874
https://cdn1.vogel.de/19rxbFxFzCMlbkpYGNqZIHs0LBA=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/ca/41/ca41e60e741ed26ded1e055c348b0a3d/0106230999.jpeg
14400000
31084
https://cdn1.vogel.de/CeYqSYAPUH9CC98zP1vbyeP7csc=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
14400000
24116
https://cdn1.vogel.de/x2EhB-U9SxyVtwr4FW7AkUNonxU=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
14400000
19757
https://cdn1.vogel.de/nwxWYnG4WHBElJcQ__URHI6EdJg=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/a5/ff/a5ffef7bf9ad37d3493b0d86083190f3/0106284193.jpeg
14400000
15900
https://cdn1.vogel.de/lKtqZoH748G33kXgPTon3dvtkE4=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
14400000
15636
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
14400000
15416
https://cdn1.vogel.de/jncAke3sahIq6AEj1gxb2U-LljE=/1200x400/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
711
https://cdn1.vogel.de/-cdF7JPnq6W9eiD27zyLdlKNzAs=/320x180/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
697
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
697
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
697
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
697
https://cdn1.vogel.de/n5XyM6XrnxUvR6ZeaJKXuU0uaUY=/129x94/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
14400000
694
https://cdn2.vogel.de/applications/15/img/logo.svg
21600000
3118
https://cdn2.vogel.de/applications/15/img/logo_mini.svg
21600000
2965
https://cdn2.vogel.de/img/vogel_logo.svg
21600000
2731
https://cdn2.vogel.de/img/arrow_dropdown.svg
21600000
957
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
86400000
2189
https://cdn.consentmanager.mgr.consensu.org/delivery/flags/en.gif
86400000
1055
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-dark.svg
86400000
983
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-light.svg
86400000
980
https://cdn2.vogel.de/scss/fonts/icons.woff
2592000000
67521
https://cdn2.vogel.de/scss/fonts/Fira-Variable/FiravaItalic.woff2
2592000000
66769
https://cdn2.vogel.de/scss/fonts/Fira-Variable/Firava.woff2
2592000000
62814
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
2592000000
31592
https://cdn2.vogel.de/scss/fonts/Bitter/bitter.woff2
2592000000
31406
https://cdn2.vogel.de/scss/fonts/Bitter/bitter-italic.woff2
2592000000
31188
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
2592000000
27716
https://cdn2.vogel.de/scss/fonts/Glyphter.woff
2592000000
9112
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
2592000000
4138
https://cdn2.vogel.de/js/vendors/respiframe/jquery.responsiveiframe.js
2592000000
2132
https://cdn2.vogel.de/js/vendors/hoverintent/jquery.hoverintent.min.js
2592000000
1630
https://cdn2.vogel.de/js/vendors/lazysizes/plugins/print/ls.print.min.js
2592000000
1110
Avoid an excessive DOM size — 2,209 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2209
Maximum DOM Depth
figure.inf-teaser__figure > a > picture.inf-imgwrapper > source
15
Maximum Child Elements
IT-Awards eBooks Specials Rechenzentrum Hardware Software Services Cloud Datens…
23
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://cdn1.vogel.de/yTDyWHSNQd-R2eTRWsh8GbNosvs=/1200x400/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/7WRRu_vOJjVHk57Vksw8Wx6wSJA=/300x300/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn2.vogel.de/applications/15/img/logo.svg
https://cdn1.vogel.de/CeYqSYAPUH9CC98zP1vbyeP7csc=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
https://cdn1.vogel.de/x2EhB-U9SxyVtwr4FW7AkUNonxU=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
https://cdn1.vogel.de/lKtqZoH748G33kXgPTon3dvtkE4=/320x180/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
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https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn2.vogel.de/img/vogel_logo.svg
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
https://cdn1.vogel.de/n5XyM6XrnxUvR6ZeaJKXuU0uaUY=/129x94/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/n5XyM6XrnxUvR6ZeaJKXuU0uaUY=/129x94/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
https://jobs.jobware.net/jobresources/logo/220/119220/840/001100840/133/1344_2_160x80.gif
https://jobs.jobware.net/jobresources/logo/220/44220/681/001096681/51/5179_2_160x80.gif
https://jobs.jobware.net/jobresources/logo/143/56143/591/001075591/64/16586_2_160x80.gif
https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
https://jobs.jobware.net/jobresources/logo/894/162894/504/012109504/1/160.gif
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
90

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of datacenter-insider.de. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Datacenter-insider.de may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements
Alle Fachbeiträge
Alle Bildergalerien
Alle IT-Jobs
Alle Firmen
Alle Artikel zu Rechenzentrum
Alle Artikel zu Hardware
Alle Neueste Whitepaper
Alle Neueste Webinare
Alle Artikel zu Software
Alle Artikel zu Services
Alle Artikel zu Cloud
Alle Artikel zu Datenspeicher
Alle Artikel zu Sicherheit
Alle Artikel zu Quantencomputing
Alle Artikel zu Netze
Alle Artikel zu Blockchain
Alle Artikel zu Splitter

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
Schwachstellen erkennen, bewerten und dichten
HPC-Technik made in Europe
60 Jahre Leibniz Rechenzentrum
OEDIV KG
Dell GmbH
Kommentar: „Deutschland hat die Wärmewende um zehn Jahre verschlafen“
HPC-Technik made in Europe
Mehr Chaos als Durchblick
Vernunft und Wirtschaftlichkeit sind kein Widerspruch mehr
IT-Management-Plattform weiter ausgebaut
Die dritte Spezifikation des Compute Express Link
Hybride Cloud-Lösungen
Solidigm QLC-SSD P41 Plus
Schwachstellen erkennen, bewerten und dichten
Ein bisschen noch wie Lochkartenprogrammierung
Dell'Oro Group: Ports mit 800 Gbit/s werden bis 2025 Ports überwiegen
Blockchain-Technologie für Edelmetalle
Protokolle der Wiederbelebung nach Hitzetod

Names and labels

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
83

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that datacenter-insider.de should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
3.5.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://datacenter-insider.de/
Allowed

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
SHOW DETAILS
Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for datacenter-insider.de. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
78

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of datacenter-insider.de. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Sets a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 76
Performance 53
Accessibility 81
Best Practices 75
SEO 91
PWA 80
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.datacenter-insider.de
Updated: 12th August, 2022

1.77 seconds
First Contentful Paint (FCP)
77%
19%
4%

0.02 seconds
First Input Delay (FID)
97%
3%
0%

Simulate loading on mobile
53

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for datacenter-insider.de. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Datacenter-insider.de should consider minifying CSS files.
Minify JavaScript — Potential savings of 3 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Datacenter-insider.de should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn2.vogel.de/js/custom.js?v=1.0
8440
2656
Reduce unused CSS — Potential savings of 23 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Datacenter-insider.de should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
27716
23866
Efficiently encode images — Potential savings of 7 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
6708
Serve images in next-gen formats — Potential savings of 20 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
15246
11439.9
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
9220.8
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Datacenter-insider.de should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 5 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
5475
https://cp.datacenter-insider.de//now.js
59
https://data-24fe804269.datacenter-insider.de/iomm/latest/manager/base/es5/bundle.js
49
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 1,096 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://cdn1.vogel.de/HTDGZAErI6QM9C_-ETdcmo79xtA=/1200x676/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
144381
https://www.datacenter-insider.de/
91397
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
77256
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
75757
https://cdn1.vogel.de/0oljSHn-oZ9B6rUsBR0YUFda1ec=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
68996
https://cdn2.vogel.de/scss/fonts/icons.woff
67521
https://cdn2.vogel.de/scss/fonts/Fira-Variable/FiravaItalic.woff2
66769
https://cdn1.vogel.de/VwCBrOJO3-sEkMgQYQafMc7vML0=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
63716
https://cdn2.vogel.de/scss/fonts/Fira-Variable/Firava.woff2
62814
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
57319
Avoid chaining critical requests — 2 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Datacenter-insider.de should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 57 requests • 1,096 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
57
1122219
Image
26
396977
Script
17
325956
Font
6
268810
Document
1
91397
Stylesheet
2
33646
Other
5
5433
Media
0
0
Third-party
48
979082
Minimize third-party usage — Third-party code blocked the main thread for 60 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
77256
59.46
SHOW DETAILS
5036
0
SHOW DETAILS
4717
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Besser geschützt mit „VMware Carbon Black Workload für AWS“. Das ist eine konso…
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Besser geschützt mit „VMware Carbon Black Workload für AWS“. Das ist eine konso…
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 15 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
7169
317
https://www.datacenter-insider.de/
2790
121
https://www.datacenter-insider.de/
3243
100
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
9105
97
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
6060
93
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
9016
89
https://www.datacenter-insider.de/
3094
85
https://cp.datacenter-insider.de//now.js
7063
68
https://www.datacenter-insider.de/
3179
64
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
5610
62
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
6192
61
https://www.datacenter-insider.de/
3343
61
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
5695
60
https://www.datacenter-insider.de/
3040
54
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
5070
53
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://datacenter-insider.de/
http/1.1
0
320.41400019079
320
0
301
text/html
https://datacenter-insider.de/
http/1.1
320.86200080812
1065.6510004774
396
0
301
text/html
https://www.datacenter-insider.de/
http/1.1
1066.0530002788
2458.0480000004
91397
578466
200
text/html
Document
https://cdn2.vogel.de/scss/fonts/Fira-Variable/Firava.woff2
h2
2466.5340008214
2863.506000489
62814
62176
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Fira-Variable/FiravaItalic.woff2
h2
2466.7410003021
2758.9010000229
66769
66104
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Bitter/bitter.woff2
h2
2466.9340001419
2724.6130006388
31406
30760
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Bitter/bitter-italic.woff2
h2
2467.1750003472
2730.7020006701
31188
30500
200
font/woff2
Font
https://cdn2.vogel.de/scss/fonts/Glyphter.woff
h2
2467.4300001934
2738.241000101
9112
8500
200
font/woff
Font
https://cdn2.vogel.de/scss/fonts/icons.woff
h2
2467.5630005077
2737.7220001072
67521
67904
200
font/woff
Font
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
h2
2483.0860001966
2771.9140006229
27716
162844
200
text/css
Stylesheet
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
h2
2483.3240006119
2740.9080006182
31592
89475
200
application/javascript
Script
https://data-24fe804269.datacenter-insider.de/iomm/latest/bootstrap/stub.js
h2
2773.788000457
3296.7290002853
683
323
200
application/javascript
Script
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
h2
2801.6820000485
3648.686000146
57319
213788
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
h2
2801.8730003387
2901.1960001662
4138
7770
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/respiframe/jquery.responsiveiframe.js
h2
2802.0140007138
2837.6850001514
2132
3969
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/hoverintent/jquery.hoverintent.min.js
h2
2802.2790001705
3040.2230005711
1630
2244
200
application/javascript
Script
https://cdn2.vogel.de/js/menu.js?v=1.0
h2
2802.6400003582
2838.8920007274
1933
4666
200
application/javascript
Script
https://cdn2.vogel.de/js/custom.js?v=1.0
h2
2802.8340004385
2839.8210005835
8440
38621
200
application/javascript
Script
https://cdn2.vogel.de/js/vendors/lazysizes/plugins/print/ls.print.min.js
h2
2803.095000796
2841.9440006837
1110
726
200
application/javascript
Script
https://cdn2.vogel.de/img/arrow_dropdown.svg
h2
2804.002000019
2900.7840007544
957
408
200
image/svg+xml
Image
https://cdn2.vogel.de/applications/15/img/logo.svg
h2
2804.7350002453
2841.4050005376
3118
6569
200
image/svg+xml
Image
https://cdn2.vogel.de/applications/15/img/logo_mini.svg
h2
2804.9720004201
2842.9680000991
2965
14799
200
image/svg+xml
Image
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
h2
2805.149000138
3065.3660008684
15416
15246
200
image/png
Image
https://cdn1.vogel.de/0VjUeusBtkuCAtLQZ78GPli8Ebs=/288x162/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2805.3340008482
3064.9180002511
697
349
200
image/jpeg
Image
https://cdn1.vogel.de/Q1seRoIMBjAbyOb_h6FpecsVYPM=/600x338/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2805.5210001767
3105.4890006781
709
966
200
image/jpeg
Image
https://cdn1.vogel.de/0NKuZ7CcVnMw7l58qJoPIXyzvfg=/624x351/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2806.4770000055
3024.6100006625
701
1018
200
image/jpeg
Image
https://cdn1.vogel.de/Fwnj5zvzUm50Nj2vkDjL9cswga8=/200x200/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2806.6400000826
3041.4300002158
697
316
200
image/jpeg
Image
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2806.80700019
3042.7780002356
697
250
200
image/jpeg
Image
https://cdn1.vogel.de/n5XyM6XrnxUvR6ZeaJKXuU0uaUY=/129x94/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
h2
2806.9840008393
3032.4260005727
694
211
200
image/jpeg
Image
https://cdn2.vogel.de/img/vogel_logo.svg
h2
2807.1250002831
2899.0029999986
2731
5845
200
image/svg+xml
Image
https://data-24fe804269.datacenter-insider.de/iomm/latest/manager/base/es5/bundle.js
h2
2807.2640001774
3467.1390000731
21087
72521
200
application/javascript
Script
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp.min.css
h2
2808.1520004198
3078.0240008608
5930
27160
200
text/css
Stylesheet
https://consentmanager.mgr.consensu.org/delivery/cmp.php?id=28861&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&&usedesign=13778&l=en&o=1660293395132
http/1.1
2807.4210006744
3340.3100008145
1005
868
200
application/javascript
Script
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
h2
2807.6540008187
3397.7550007403
75757
403935
200
application/javascript
Script
https://consentmanager.mgr.consensu.org/delivery/cmp.php?__cmpcc=1&id=28861&o=1660293395&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&&usedesign=13778&l=en&odw=0&dlt=1
http/1.1
3344.957000576
4198.0760004371
3325
6760
200
application/javascript
Script
https://cdn1.vogel.de/HTDGZAErI6QM9C_-ETdcmo79xtA=/1200x676/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
h2
3716.7470008135
6921.7040007934
144381
146734
200
image/webp
Image
https://cdn1.vogel.de/VwCBrOJO3-sEkMgQYQafMc7vML0=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
h2
3716.8580004945
5730.6870007887
63716
66418
200
image/webp
Image
https://mbakolyf0n-dsn.algolia.net/1/indexes/*/queries?x-algolia-agent=Algolia%20for%20vanilla%20JavaScript%203.32.1%3BJS%20Helper%20(2.27.0)&x-algolia-application-id=MBAKOLYF0N&x-algolia-api-key=28a535cc23a7cbb4992d66ce71fc893d
http/1.1
3725.9440002963
4366.4940008894
4717
19491
200
application/json
XHR
https://cdn.consentmanager.mgr.consensu.org/delivery/customdata/bV8xLndfMjg4NjEuZF8xMzc3OC54XzYudi5wLnRfMTM3Nzg.js
h2
4201.6590004787
4515.3180006891
9295
36750
200
application/javascript
Script
https://cp.datacenter-insider.de//now.js
h2
4202.511000447
4705.2380004898
27065
75991
200
application/javascript
Script
https://cdn1.vogel.de/0oljSHn-oZ9B6rUsBR0YUFda1ec=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
h2
4224.8880006373
4444.34799999
68996
70826
200
image/webp
Image
https://jobs.jobware.net/jobresources/logo/220/119220/840/001100840/133/1344_2_160x80.gif
h2
4374.9870005995
4791.2670001388
4475
4109
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/220/44220/681/001096681/51/5179_2_160x80.gif
h2
4375.154000707
4692.5390008837
4027
3662
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/143/56143/591/001075591/64/16586_2_160x80.gif
h2
4375.5510002375
4793.5040006414
2981
2616
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
h2
4375.9440006688
4792.7940003574
6574
6208
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/894/162894/504/012109504/1/160.gif
h2
4376.2160008773
4703.9890000597
3753
3388
200
image/gif
Image
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
h2
4381.8730004132
4784.5270000398
11540
11172
200
image/jpeg
Image
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
h2
4741.7419999838
4984.8800003529
2189
5410
200
application/javascript
Script
https://cp.datacenter-insider.de/stats
5014.6930003539
5015.5450003222
0
0
-1
Preflight
https://cp.datacenter-insider.de/stats
5013.3830001578
5096.7450002208
0
0
-1
Ping
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
h2
5035.6430001557
5065.8420007676
77256
238030
200
application/javascript
Script
https://consentmanager.mgr.consensu.org/delivery/info/?id=28861&did=9&cfdid=9&t=pv.d_ncs.d_ancs.d_bncs.d_pur&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&o=1660293397344&l=EN&lv=36329&d=9&ct=14&e=&e2=&e3=&i=&sv=119&dv=6&&usedesign=13778
http/1.1
5063.9350004494
5902.0540006459
353
43
200
image/gif
Image
https://consentmanager.mgr.consensu.org/delivery/info/?id=28861&did=9&cfdid=9&t=cv&h=https%3A%2F%2Fwww.datacenter-insider.de%2F&o=1660293397345&l=EN&lv=36329&d=9&ct=14&e=&e2=&e3=&i=&sv=119&dv=6&&usedesign=13778
http/1.1
5064.2270008102
5891.8540002778
353
43
200
image/gif
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-light.svg
h2
5064.6069999784
5154.6390000731
980
662
200
image/svg+xml
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/logo-cp-dark.svg
h2
5064.9250000715
5346.5820001438
983
662
200
image/svg+xml
Image
https://cdn.consentmanager.mgr.consensu.org/delivery/flags/en.gif
h2
5096.5900002047
5363.9490008354
1055
384
200
image/gif
Image
https://cdn1.vogel.de/hA2Xo-CDqkJh6wStn-k10Usjcdg=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
h2
6940.5770003796
7336.0320003703
53428
56518
200
image/webp
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
2487.554
30.286
2797.193
7.959
2805.244
15.571
2820.861
8.502
2829.375
23.481
2853.776
15.09
2868.874
10.849
2879.733
8.673
2888.424
9.052
2906.2
6.99
2918.149
12.197
2930.495
13.381
2955.244
42.453
2998.241
16.062
3014.778
49.954
3068.879
8.123
3438.185
13.316
3685.019
46.582
3733.046
7.629
3740.684
9.853
3750.651
30.478
3798.917
15.333
4246.571
5.76
4391.565
9.517
4401.133
5.289
4413.068
8.388
4738.868
8.359
4749.341
16.907
5011.506
79.302
5090.837
30.122
5121.655
8.459
5150.205
22.145
5172.592
24.197
5202.311
6.734
6948.389
6.483
6962.627
23.148
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

Total Blocking Time — 410 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Audits

First Meaningful Paint — 3.5 s
The time taken for the primary content of the page to be rendered.

Other

Properly size images — Potential savings of 157 KiB
Images can slow down the page's load time. Datacenter-insider.de should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://cdn1.vogel.de/HTDGZAErI6QM9C_-ETdcmo79xtA=/1200x676/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/aa/f5/aaf59eb15545b2df60759ac8779e6e79/0106238704.jpeg
144381
54754
https://cdn1.vogel.de/0oljSHn-oZ9B6rUsBR0YUFda1ec=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/db/42/db42a1707fc1dbe2a75b1e1cf00a06de/0106247246.jpeg
68996
37739
https://cdn1.vogel.de/VwCBrOJO3-sEkMgQYQafMc7vML0=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/c5/4a/c54a9a15ed46217ca872da3f2469c861/0106242842.jpeg
63716
34851
https://cdn1.vogel.de/hA2Xo-CDqkJh6wStn-k10Usjcdg=/1248x702/smart/filters:format(webp):quality(80)/p7i.vogel.de/wcms/6c/73/6c73422aa8f2789bc702ac6bb3eb8d2e/0106291205.jpeg
53428
29223
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
4244
Defer offscreen images — Potential savings of 51 KiB
Time to Interactive can be slowed down by resources on the page. Datacenter-insider.de should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://cdn1.vogel.de/wcms/62/73/6273d443d9d41/datacenterreaderschoice.png
15246
15246
https://jobs.jobware.net/jobresources/logo/945/305945/571/030776571/1/logo.jpg
11172
11172
https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
6208
6208
https://jobs.jobware.net/jobresources/logo/220/119220/840/001100840/133/1344_2_160x80.gif
4109
4109
https://jobs.jobware.net/jobresources/logo/220/44220/681/001096681/51/5179_2_160x80.gif
3662
3662
https://jobs.jobware.net/jobresources/logo/894/162894/504/012109504/1/160.gif
3388
3388
https://cdn2.vogel.de/applications/15/img/logo_mini.svg
2965
2965
https://cdn2.vogel.de/img/vogel_logo.svg
2731
2731
https://jobs.jobware.net/jobresources/logo/143/56143/591/001075591/64/16586_2_160x80.gif
2616
2616
Reduce unused JavaScript — Potential savings of 92 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
77256
39623
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
57319
29215
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
75757
25217
Reduce JavaScript execution time — 1.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.datacenter-insider.de/
1423.984
164.872
32.376
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
487.908
288.876
5.56
Unattributable
414.316
14.692
0.644
https://cp.datacenter-insider.de/chunks/chunk-cmp-consentmanager.20220811085358-a1520a8de1.59173d838703991ef1b2.js
384.084
357.692
3.432
https://cdn2.vogel.de/js/vendors/lazysizes/lazysizes.min.js
380.552
166.62
0.824
https://www.googletagmanager.com/gtm.js?id=GTM-5LQKC7B
259.488
214.812
16.356
https://www.it-jobuniverse.de//_em_daten/widget/js/jquery.evolver_widget.js?v=413adab6aed26d3464b581bc388b3d12196ef7e5
114.828
83.172
12.372
https://cp.datacenter-insider.de//now.js
102.356
90.688
5.472
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
77.176
44.384
22.7
Minimize main-thread work — 3.8 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1500.076
Other
841.184
Style & Layout
756.676
Rendering
329.604
Parse HTML & CSS
211.32
Script Parsing & Compilation
113.292
Garbage Collection
33.32

Metrics

First Contentful Paint — 3.5 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 8.8 s
The time taken for the page to become fully interactive.
Speed Index — 9.1 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 4.5 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 320 ms
Users could experience a delay when interacting with the page.

Other

Eliminate render-blocking resources — Potential savings of 970 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Datacenter-insider.de should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn2.vogel.de/applications/15/scss/basic.min.css?v=0.24
27716
930
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
31592
150
Reduce initial server response time — Root document took 1,390 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.datacenter-insider.de/
1392.985
Avoid multiple page redirects — Potential savings of 1,110 ms
Redirects can cause additional delays before the page can begin loading. Datacenter-insider.de should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://datacenter-insider.de/
630
https://datacenter-insider.de/
480
https://www.datacenter-insider.de/
0
Serve static assets with an efficient cache policy — 40 resources found
Datacenter-insider.de can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
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0
21087
https://data-24fe804269.datacenter-insider.de/iomm/latest/bootstrap/stub.js
0
683
https://cp.datacenter-insider.de//now.js
300000
27065
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp_en.min.js
1800000
75757
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1800000
9295
https://cdn.consentmanager.mgr.consensu.org/delivery/cmp.min.css
1800000
5930
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3600000
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7200000
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7200000
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14400000
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14400000
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14400000
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14400000
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86400000
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86400000
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62814
https://cdn2.vogel.de/js/vendors/jquery/jquery-3.5.1.min.js
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31592
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2592000000
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2592000000
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2592000000
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https://cdn2.vogel.de/js/vendors/lazysizes/plugins/print/ls.print.min.js
2592000000
1110
Avoid an excessive DOM size — 2,217 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2217
Maximum DOM Depth
figure.inf-teaser__figure > a > picture.inf-imgwrapper > source
15
Maximum Child Elements
IT-Awar…
23
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
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https://cdn2.vogel.de/img/vogel_logo.svg
https://cdn1.vogel.de/WjpOxv5PviFYWPOSgtFTQGsBMVo=/150x150/filters:quality(1)/cdn4.vogel.de/infinity/white.jpg
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https://jobs.jobware.net/jobresources/logo/220/119220/840/001100840/133/1344_2_160x80.gif
https://jobs.jobware.net/jobresources/logo/220/44220/681/001096681/51/5179_2_160x80.gif
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https://jobs.jobware.net/jobresources/logo/501/28501/584/001973584/3/uni_2_160x80.gif
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First Contentful Paint (3G) — 6782 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
81

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of datacenter-insider.de. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Names and labels

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Datacenter-insider.de may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements
Alle Fachbeiträge
Alle Bildergalerien
Alle IT-Jobs
Alle Firmen
Alle Artikel zu Rechenzentrum
Alle Artikel zu Hardware
Alle Neueste Whitepaper
Alle Neueste Webinare
Alle Artikel zu Software
Alle Artikel zu Services
Alle Artikel zu Cloud
Alle Artikel zu Datenspeicher
Alle Artikel zu Sicherheit
Alle Artikel zu Quantencomputing
Alle Artikel zu Netze
Alle Artikel zu Blockchain
Alle Artikel zu Splitter

Names and labels

Buttons do not have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Failing Elements
div.inf-mainheader__wrapper > div.inf-mobile-menu > form.inf-mobile-search > button#search_submit_header-mobile
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Customize your choice
Cookies
Privacy notice
T&C
Legal notice

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
Schwachstellen erkennen, bewerten und dichten
HPC-Technik made in Europe
60 Jahre Leibniz Rechenzentrum
OEDIV KG
Dell GmbH
Kommentar: „Deutschland hat die Wärmewende um zehn Jahre verschlafen“
HPC-Technik made in Europe
Mehr Chaos als Durchblick
Vernunft und Wirtschaftlichkeit sind kein Widerspruch mehr
IT-Management-Plattform weiter ausgebaut
Die dritte Spezifikation des Compute Express Link
Hybride Cloud-Lösungen
Solidigm QLC-SSD P41 Plus
Schwachstellen erkennen, bewerten und dichten
Ein bisschen noch wie Lochkartenprogrammierung
Dell'Oro Group: Ports mit 800 Gbit/s werden bis 2025 Ports überwiegen
Blockchain-Technologie für Edelmetalle
Protokolle der Wiederbelebung nach Hitzetod

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that datacenter-insider.de should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
3.5.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://datacenter-insider.de/
Allowed

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://cdn.consentmanager.mgr.consensu.org/delivery/flags/en.gif
16 x 11
16 x 11
32 x 22

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
SHOW DETAILS
Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for datacenter-insider.de. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Document uses legible font sizes — 92.56% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
.inf-text-micro, .inf-text--micro
6.87%
7.5px
SHOW DETAILS
.inf-text-mini, .inf-text--mini
0.54%
11.25px
SHOW DETAILS
0.03%
< 12px
SHOW DETAILS
92.56%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 88% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
section.inf-col-6 > div.inf-flex > div.inf-btn-small-round > a.inf-icon
25x25
New Technology Welche Vorteile Storage As A Service bringt
Hilfe
27x14
Impressum & Kontakt
Kundencenter
75x14
Impressum & Kontakt
Autoren
40x14
Mediadaten
Datenschutz
67x14
Cookie-Manager
AGB
23x14
Datenschutz
AGB
23x14
Impressum & Kontakt
facebook
21x18
Hilfe
youtube
33x18
Kundencenter
facebook
21x18
twitter
twitter
35x18
Kundencenter
linkedin
35x18
Mediadaten
xing
33x18
Mediadaten
AGB
23x14
Hilfe

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
80

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of datacenter-insider.de. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Sets a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of datacenter-insider.de on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 81.173.115.24
Continent: Europe
Country: Germany
Germany Flag
Region:
City:
Longitude: 9.491
Latitude: 51.2993
Currencies: EUR
Languages: German

Web Hosting Provider

Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness:
WOT Child Safety:
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: datacenter-insider.de
Issued By: R3
Valid From: 28th June, 2022
Valid To: 26th September, 2022
Subject: CN = datacenter-insider.de
Hash: c81b14d5
Issuer: CN = R3
O = Let's Encrypt
S = US
Version: 2
Serial Number: 0x03E9B3646537522607909E0B7F42D2378B23
Serial Number (Hex): 03E9B3646537522607909E0B7F42D2378B23
Valid From: 28th June, 2024
Valid To: 26th September, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.44947.1.1.1
CPS: http://cps.letsencrypt.org
Authority Information Access: OCSP - URI:http://r3.o.lencr.org
CA Issuers - URI:http://r3.i.lencr.org/
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 46:A5:55:EB:75:FA:91:20:30:B5:A2:89:69:F4:F3:7D:
11:2C:41:74:BE:FD:49:B8:85:AB:F2:FC:70:FE:6D:47
Timestamp : Jun 28 18:34:31.822 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:AB:B6:92:47:50:E4:8C:9B:BA:25:22:
EC:B2:F9:D3:4D:4E:0F:C6:43:8B:59:5A:42:93:83:97:
44:91:DD:09:55:02:20:6F:50:9B:45:B3:A3:13:9A:FF:
8A:E6:35:3B:A7:65:E6:B4:4D:1B:8E:D3:E2:F5:A8:DB:
BB:A9:17:2D:23:58:85
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 41:C8:CA:B1:DF:22:46:4A:10:C6:A1:3A:09:42:87:5E:
4E:31:8B:1B:03:EB:EB:4B:C7:68:F0:90:62:96:06:F6
Timestamp : Jun 28 18:34:32.306 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:06:70:E1:58:8A:5C:42:18:93:0D:6B:7C:
AA:23:D2:14:0A:24:70:74:4C:70:42:D0:0A:8B:A5:BB:
1B:4D:12:46:02:21:00:88:BE:8D:71:8F:48:7C:15:A6:
CC:E0:52:FF:BB:D9:CD:35:86:9E:49:41:CA:3E:2F:C5:
45:CB:6E:5F:43:DF:AB
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:m.datacenter-insider.de
DNS:mobil.datacenter-insider.de
DNS:www.datacenter-insider.de
DNS:www.datacenterinsider.de
DNS:www.m.datacenter-insider.de
DNS:www.mobil.datacenter-insider.de
DNS:datacenter-insider.de
Technical

DNS Lookup

A Records

Host IP Address Class TTL
datacenter-insider.de. 81.173.115.24 IN 181

NS Records

Host Nameserver Class TTL
datacenter-insider.de. pns.dtag.de. IN 21600
datacenter-insider.de. secondary006.dtag.net. IN 21600
datacenter-insider.de. dns.vogel-net.de. IN 21600

MX Records

Priority Host Server Class TTL
0 datacenter-insider.de. datacenterinsider-de02e.mail.protection.outlook.com. IN 3600

SOA Records

Domain Name Primary NS Responsible Email TTL
datacenter-insider.de. dns.vogel-net.de. hotline.vogel-net.de. 21600

TXT Records

Host Value Class TTL
datacenter-insider.de. v=spf1 IN 21600
datacenter-insider.de. MS=ms66315618 IN 21600
datacenter-insider.de. facebook-domain-verification=oom0px8issqs65kff04y546updo6bw IN 21600
datacenter-insider.de. google-site-verification=2eBCFVhg5RhPIPNrWx6OLx-43tw-prW-bkscDHpOKTE IN 21600

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 12th August, 2022
Server: Apache
Content-Type: text/html; charset=UTF-8
Expires: 19th November, 1981
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
X-White: 403.9
X-From-Cache: false
Link: <https://cdn2.vogel.de/scss/fonts/icons.woff>; rel=preload; as=font; type="font/woff"; crossorigin=anonymous;
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Set-Cookie: *

Whois Lookup

Created:
Changed:
Expires:
Status:
Nameservers: dns.vogel-net.de
pns.dtag.de
secondary006.dtag.net
Full Whois: % Restricted rights.
%
% Terms and Conditions of Use
%
% The above data may only be used within the scope of technical or
% administrative necessities of Internet operation or to remedy legal
% problems.
% The use for other purposes, in particular for advertising, is not permitted.
%
% The DENIC whois service on port 43 doesn't disclose any information concerning
% the domain holder, general request and abuse contact.
% This information can be obtained through use of our web-based whois service
% available at the DENIC website:
% http://www.denic.de/en/domains/whois-service/web-whois.html
%
%

Domain: datacenter-insider.de
Nserver: dns.vogel-net.de
Nserver: pns.dtag.de
Nserver: secondary006.dtag.net
Status: connect
Changed: 2018-09-06T09:03:20+02:00
View Raw Whois

Nameservers

Name IP Address
dns.vogel-net.de 195.243.159.100
pns.dtag.de 194.25.0.125
secondary006.dtag.net 195.244.245.25
Related

Subdomains

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Domain Valuation Snoop Score
devicemed.de
$799 USD 1/5
it-business.de
$3,622 USD 2/5
media-treff.de
0/5
vogel.de
$11,724 USD 3/5
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