Tools & Wizards About Us
ubuntu.cz screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

ubuntu.cz

Domovská stránka | Ubuntu CZ/SK

Page Load Speed

2.3 sec in total

First Response

200 ms

Resources Loaded

1.5 sec

Page Rendered

542 ms

ubuntu.cz screenshot

About Website

Visit ubuntu.cz now to see the best up-to-date Ubuntu content for Czech Republic and also check out these interesting facts you probably never knew about ubuntu.cz

Ubuntu je operační systém se svobodnou licencí, který nachází uplatnění na osobních počítačích a serverech stejně jako v cloudu a ve světě internetu věcí.

Visit ubuntu.cz

Key Findings

We analyzed Ubuntu.cz page load time and found that the first response time was 200 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

ubuntu.cz performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

ubuntu.cz

200 ms

ubuntu.cz

231 ms

style.css

222 ms

navigation-dropdown-toggle.js

187 ms

all.min.css

301 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 97% of them (29 requests) were addressed to the original Ubuntu.cz, 3% (1 request) were made to Analytics.openalt.org. The less responsive or slowest element that took the longest time to load (584 ms) relates to the external source Analytics.openalt.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.2 kB (6%)

Content Size

671.5 kB

After Optimization

628.3 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ubuntu.cz main page is 671.5 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. 20% of websites need less resources to load. Images take 608.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 31.1 kB

  • Original 37.3 kB
  • After minification 26.8 kB
  • After compression 6.2 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 10.5 kB, which is 28% 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 31.1 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 8.9 kB

  • Original 608.6 kB
  • After minification 599.8 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. Ubuntu images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 3.2 kB

  • Original 25.7 kB
  • After minification 25.4 kB
  • After compression 22.4 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 3.2 kB or 13% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

25

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ubuntu. According to our analytics all requests are already optimized.

Network Requests Diagram

ubuntu.cz

ubuntu.cz

200 ms

ubuntu.cz

ubuntu.cz

231 ms

style.css

style.css

222 ms

navigation-dropdown-toggle.js

navigation-dropdown-toggle.js

187 ms

all.min.css

all.min.css

301 ms

icon-white.svg

icon-white.svg

266 ms

icon-laptop.svg

icon-laptop.svg

254 ms

icon-server.svg

icon-server.svg

419 ms

icon-containers.svg

icon-containers.svg

259 ms

icon-cloud.svg

icon-cloud.svg

348 ms

icon-iot.svg

icon-iot.svg

346 ms

firefox.svg

firefox.svg

377 ms

chrome.svg

chrome.svg

347 ms

skype.png

skype.png

430 ms

slack.png

slack.png

400 ms

steam.svg

steam.svg

508 ms

vlc.svg

vlc.svg

476 ms

spotify.png

spotify.png

473 ms

netflix.png

netflix.png

507 ms

libreoffice.png

libreoffice.png

509 ms

analytics.js

analytics.js

489 ms

wallpaper-24.04.jpg

wallpaper-24.04.jpg

299 ms

desktop-tile.jpg

desktop-tile.jpg

440 ms

server-tile.jpg

server-tile.jpg

440 ms

phone-tile.jpg

phone-tile.jpg

399 ms

about-tile.jpg

about-tile.jpg

439 ms

fa-solid-900.ttf

fa-solid-900.ttf

328 ms

fa-regular-400.ttf

fa-regular-400.ttf

358 ms

fa-brands-400.ttf

fa-brands-400.ttf

433 ms

matomo.js

matomo.js

584 ms

Accessibility Review

ubuntu.cz accessibility score

93

Accessibility Issues

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

ubuntu.cz 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

SEO Factors

ubuntu.cz SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

ubuntu.cz

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