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debian.org screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 87

    SEO

    Google-friendlier than
    65% of websites

debian.org

Debian -- The Universal Operating System

Page Load Speed

987 ms in total

First Response

187 ms

Resources Loaded

454 ms

Page Rendered

346 ms

debian.org screenshot

About Website

Visit debian.org now to see the best up-to-date Debian content for United States and also check out these interesting facts you probably never knew about debian.org

Debian is an operating system and a distribution of Free Software. It is maintained and updated through the work of many users who volunteer their time and effort.

Visit debian.org

Key Findings

We analyzed Debian.org page load time and found that the first response time was 187 ms and then it took 800 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

debian.org performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value250 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.59

11/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

www.debian.org

187 ms

debhome.css

20 ms

startpage.css

32 ms

5img-carousel-slider.css

42 ms

debian-en.css

45 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Debian.org and no external sources were called. The less responsive or slowest element that took the longest time to load (187 ms) belongs to the original domain Debian.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 41.2 kB (3%)

Content Size

1.4 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Debian.org main page is 1.4 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. 20% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 11.6 kB

  • Original 15.2 kB
  • After minification 13.1 kB
  • After compression 3.6 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 2.1 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 11.6 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 25.5 kB

  • Original 1.3 MB
  • After minification 1.3 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. Debian images are well optimized though.

CSS Optimization

-38%

Potential reduce by 4.1 kB

  • Original 10.8 kB
  • After minification 10.7 kB
  • After compression 6.7 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. Debian.org needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (18%)

Requests Now

22

After Optimization

18

  • Images
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Debian. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.debian.org

www.debian.org

187 ms

debhome.css

debhome.css

20 ms

startpage.css

startpage.css

32 ms

5img-carousel-slider.css

5img-carousel-slider.css

42 ms

debian-en.css

debian-en.css

45 ms

openlogo-50.png

openlogo-50.png

54 ms

debconf23_group_photo.jpg

debconf23_group_photo.jpg

166 ms

mini-dc23-hamburg.jpg

mini-dc23-hamburg.jpg

100 ms

mini-dc23-brasilia.jpg

mini-dc23-brasilia.jpg

116 ms

calamares-bookworm.png

calamares-bookworm.png

116 ms

debian-swiss-knife-hands-1024x576.jpg

debian-swiss-knife-hands-1024x576.jpg

95 ms

debian-funny-people-1024x576.jpg

debian-funny-people-1024x576.jpg

122 ms

users.svg

users.svg

111 ms

heartbeat.svg

heartbeat.svg

113 ms

user-plus.svg

user-plus.svg

123 ms

list.svg

list.svg

122 ms

debian-logo-1024x576.png

debian-logo-1024x576.png

127 ms

trophy.svg

trophy.svg

125 ms

life-ring.svg

life-ring.svg

129 ms

security.svg

security.svg

139 ms

debian.css

debian.css

133 ms

gradient.png

gradient.png

26 ms

emerald-fg.svg

emerald-fg.svg

26 ms

Accessibility Review

debian.org accessibility score

80

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-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.

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

Form elements do not have associated labels

Best Practices

debian.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

Serves images with low resolution

SEO Factors

debian.org SEO score

87

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

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 Debian.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 Debian.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

debian.org

Open Graph description is not detected on the main page of Debian. 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: