Tools & Wizards About Us
datacenter-group.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

datacenter-group.com

Data Center Group - effiziente, sichere und hochverfügbare Rechenzentren – Data Center Group

Page Load Speed

4 sec in total

First Response

219 ms

Resources Loaded

2.4 sec

Page Rendered

1.4 sec

datacenter-group.com screenshot

About Website

Visit datacenter-group.com now to see the best up-to-date Data Center Group content and also check out these interesting facts you probably never knew about datacenter-group.com

Von der Beratung und Planung bis hin zu Service und Betrieb. Zur Erreichung Ihrer Ziele arbeiten die sechs verschiedenen Geschäftsbereiche der Data Center Group eng verzahnt und aufeinander abgestimmt...

Visit datacenter-group.com

Key Findings

We analyzed Datacenter-group.com page load time and found that the first response time was 219 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

datacenter-group.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

38/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.164

72/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

datacenter-group.com

219 ms

381 ms

shariff.complete-6e21bf676f4d6ad89facca93ac7225c2.css

229 ms

styles-ec1e7b48a735237d4c45868f98b4b012.css

557 ms

app.js

628 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 83% of them (29 requests) were addressed to the original Datacenter-group.com, 11% (4 requests) were made to Cloud.ccm19.de and 3% (1 request) were made to . The less responsive or slowest element that took the longest time to load (671 ms) belongs to the original domain Datacenter-group.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 194.2 kB (26%)

Content Size

736.5 kB

After Optimization

542.3 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Datacenter-group.com main page is 736.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 567.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 140.0 kB

  • Original 167.2 kB
  • After minification 144.6 kB
  • After compression 27.2 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 22.6 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 140.0 kB or 84% of the original size.

Image Optimization

-10%

Potential reduce by 54.2 kB

  • Original 567.1 kB
  • After minification 512.8 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Data Center Group images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 5 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 2.2 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 5 (16%)

Requests Now

31

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Center Group. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

datacenter-group.com

datacenter-group.com

219 ms

381 ms

shariff.complete-6e21bf676f4d6ad89facca93ac7225c2.css

shariff.complete-6e21bf676f4d6ad89facca93ac7225c2.css

229 ms

styles-ec1e7b48a735237d4c45868f98b4b012.css

styles-ec1e7b48a735237d4c45868f98b4b012.css

557 ms

app.js

app.js

628 ms

shariff.complete.js

shariff.complete.js

228 ms

scripts.js

scripts.js

409 ms

cfd16b174d7f7b046e20adbc2e0a1094.js

cfd16b174d7f7b046e20adbc2e0a1094.js

317 ms

app.css

app.css

103 ms

module.js

module.js

204 ms

widget

widget

296 ms

data-center-group-logo.svg

data-center-group-logo.svg

148 ms

240814_Signatur_SmartCountry.jpg

240814_Signatur_SmartCountry.jpg

235 ms

csm_MicrosoftTeams-image__14__3910297037.png

csm_MicrosoftTeams-image__14__3910297037.png

391 ms

csm_DCG_Konfigurator_019b4f4fa7.png

csm_DCG_Konfigurator_019b4f4fa7.png

446 ms

csm_Keyvisual_Mischwald_RZ_M_rgb_57645e75f2.jpg

csm_Keyvisual_Mischwald_RZ_M_rgb_57645e75f2.jpg

405 ms

csm_AdobeStock_259078609_21ff2719be.jpeg

csm_AdobeStock_259078609_21ff2719be.jpeg

217 ms

csm_AdobeStock_345319960_176e105da9.jpeg

csm_AdobeStock_345319960_176e105da9.jpeg

497 ms

logo_DCC_neu.svg

logo_DCC_neu.svg

328 ms

kues-data-logo_neu.svg

kues-data-logo_neu.svg

344 ms

Logo_Stadtwerke_Emden_neu.svg

Logo_Stadtwerke_Emden_neu.svg

443 ms

Logos-Kunden_rewe-group_neu.svg

Logos-Kunden_rewe-group_neu.svg

455 ms

Logos-Kunden_jost_neu.svg

Logos-Kunden_jost_neu.svg

499 ms

Logos-Kunden_hoermann_neu.svg

Logos-Kunden_hoermann_neu.svg

515 ms

Logos-Kunden_stadtwerke-karlsruhe_neu.svg

Logos-Kunden_stadtwerke-karlsruhe_neu.svg

551 ms

Logos-Kunden_kuka_neu.svg

Logos-Kunden_kuka_neu.svg

556 ms

Logos-Kunden_marc-o-polo.svg

Logos-Kunden_marc-o-polo.svg

563 ms

Logos-Kunden_edeka_neu.svg

Logos-Kunden_edeka_neu.svg

617 ms

Koelner_Verkehrs-Betriebe_AG_logo_neu2.svg

Koelner_Verkehrs-Betriebe_AG_logo_neu2.svg

607 ms

Villeroy___Boch_logo_inverse_neu.svg

Villeroy___Boch_logo_inverse_neu.svg

625 ms

Otto_von_Guericke_Universitaet_Magdeburg_Logo_neu.svg

Otto_von_Guericke_Universitaet_Magdeburg_Logo_neu.svg

669 ms

Fraunhofer-IESE_logo.svg

Fraunhofer-IESE_logo.svg

666 ms

Hansgrohe-Logo.svg

Hansgrohe-Logo.svg

671 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

1 ms

gtm.js

gtm.js

64 ms

Accessibility Review

datacenter-group.com accessibility score

77

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes are not valid or misspelled

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

datacenter-group.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

datacenter-group.com SEO score

100

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datacenter-group.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Datacenter-group.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

datacenter-group.com

Open Graph data is detected on the main page of Data Center Group. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: