Tools & Wizards About Us

Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

gnu.org

The GNU Operating System and the Free Software Movement

Page Load Speed

1 sec in total

First Response

144 ms

Resources Loaded

652 ms

Page Rendered

226 ms

About Website

Visit gnu.org now to see the best up-to-date GNU content for China and also check out these interesting facts you probably never knew about gnu.org

Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

Visit gnu.org

Key Findings

We analyzed Gnu.org page load time and found that the first response time was 144 ms and then it took 878 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

gnu.org performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

gnu.org

144 ms

www.gnu.org

180 ms

combo.css

48 ms

layout.min.css

86 ms

heckert_gnu.small.png

77 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Gnu.org and no external sources were called. The less responsive or slowest element that took the longest time to load (286 ms) belongs to the original domain Gnu.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.4 kB (12%)

Content Size

442.7 kB

After Optimization

389.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gnu.org main page is 442.7 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. Only 10% of websites need less resources to load. Images take 384.7 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 17.8 kB

  • Original 24.9 kB
  • After minification 21.2 kB
  • After compression 7.0 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 3.6 kB, which is 15% 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 17.8 kB or 72% of the original size.

Image Optimization

-4%

Potential reduce by 15.4 kB

  • Original 384.7 kB
  • After minification 369.3 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. GNU images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 5.9 kB

  • Original 8.9 kB
  • After minification 8.9 kB
  • After compression 3.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 5.9 kB or 66% of the original size.

CSS Optimization

-59%

Potential reduce by 14.2 kB

  • Original 24.2 kB
  • After minification 21.4 kB
  • After compression 10.0 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. Gnu.org needs all CSS files to be minified and compressed as it can save up to 14.2 kB or 59% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (30%)

Requests Now

10

After Optimization

7

  • Images
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GNU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

gnu.org accessibility score

100

Accessibility Issues

Best Practices

gnu.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

SEO Factors

gnu.org SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Document doesn't have a valid hreflang

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gnu.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Gnu.org 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 GNU. 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: