Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

datacenterknowledge.com

Data Center Knowledge | News and analysis for the data center industry

Page Load Speed

118.4 sec in total

First Response

300 ms

Resources Loaded

98.3 sec

Page Rendered

19.8 sec

datacenterknowledge.com screenshot

About Website

Welcome to datacenterknowledge.com homepage info - get ready to check Data Center Knowledge best content for India right away, or after learning these important things about datacenterknowledge.com

Data Center Knowledge is the leading source of news, analysis, and expertise for data center industry professionals covering data center design and strategy

Visit datacenterknowledge.com

Key Findings

We analyzed Datacenterknowledge.com page load time and found that the first response time was 300 ms and then it took 118.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

datacenterknowledge.com performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value8,810 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.131

81/100

15%

TTI (Time to Interactive)

Value26.4 s

0/100

10%

Network Requests Diagram

datacenterknowledge.com

300 ms

www.datacenterknowledge.com

401 ms

css_PpiQEI-azlEmknynFVbTW6pWwXhVPT_fbABYbBL6JWQ.css

535 ms

css_DHcXHPYBSjIVaCQZEG4ZlpLkvslnFlBCnQUCzlbRBio.css

533 ms

css_5s97c60f3VRpsAX_L14fh1vAVHgak1sY-HQSBRlCRrc.css

1603 ms

Our browser made a total of 173 requests to load all elements on the main page. We found that 23% of them (40 requests) were addressed to the original Datacenterknowledge.com, 16% (27 requests) were made to Px.moatads.com and 8% (13 requests) were made to Pentos-cdn.polarmobile.com. The less responsive or slowest element that took the longest time to load (21 sec) relates to the external source Metrics.datacenterknowledge.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.7 MB (56%)

Content Size

6.7 MB

After Optimization

3.0 MB

In fact, the total size of Datacenterknowledge.com main page is 6.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 142.8 kB

  • Original 176.7 kB
  • After minification 166.6 kB
  • After compression 33.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 142.8 kB or 81% of the original size.

Image Optimization

-24%

Potential reduce by 540.4 kB

  • Original 2.2 MB
  • After minification 1.7 MB

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. Obviously, Data Center Knowledge needs image optimization as it can save up to 540.4 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 2.3 MB

  • Original 3.4 MB
  • After minification 3.3 MB
  • After compression 1.1 MB

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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 2.3 MB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 769.4 kB

  • Original 899.1 kB
  • After minification 837.5 kB
  • After compression 129.7 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Datacenterknowledge.com needs all CSS files to be minified and compressed as it can save up to 769.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 109 (76%)

Requests Now

144

After Optimization

35

The browser has sent 144 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Center Knowledge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 62 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

datacenterknowledge.com accessibility score

79

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

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

datacenterknowledge.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

datacenterknowledge.com SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datacenterknowledge.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Datacenterknowledge.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

Open Graph description is not detected on the main page of Data Center Knowledge. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: