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ro.lichess.org screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

ro.lichess.org

lichess.org • Free Online Chess

Page Load Speed

1.4 sec in total

First Response

474 ms

Resources Loaded

736 ms

Page Rendered

159 ms

ro.lichess.org screenshot

About Website

Welcome to ro.lichess.org homepage info - get ready to check Ro Li Chess best content for United States right away, or after learning these important things about ro.lichess.org

Free online chess server. Play chess in a clean interface. No registration, no ads, no plugin required. Play chess with the computer, friends or random opponents.

Visit ro.lichess.org

Key Findings

We analyzed Ro.lichess.org page load time and found that the first response time was 474 ms and then it took 895 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

ro.lichess.org performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.3 s

85/100

10%

Network Requests Diagram

ro.lichess.org

474 ms

css

89 ms

common.css

41 ms

board.css

29 ms

home.css

48 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Ro.lichess.org, 56% (10 requests) were made to Lichess1.org and 17% (3 requests) were made to D27t3nufpewl0w.cloudfront.net. The less responsive or slowest element that took the longest time to load (474 ms) belongs to the original domain Ro.lichess.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 256.4 kB (64%)

Content Size

399.1 kB

After Optimization

142.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ro.lichess.org main page is 399.1 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. 35% of websites need less resources to load. Javascripts take 237.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 36.4 kB

  • Original 45.8 kB
  • After minification 40.8 kB
  • After compression 9.4 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 5.0 kB, which is 11% 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 36.4 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 10 B

  • Original 28.6 kB
  • After minification 28.6 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. Ro Li Chess images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 154.1 kB

  • Original 237.2 kB
  • After minification 236.1 kB
  • After compression 83.1 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 154.1 kB or 65% of the original size.

CSS Optimization

-75%

Potential reduce by 65.9 kB

  • Original 87.6 kB
  • After minification 86.4 kB
  • After compression 21.6 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. Ro.lichess.org needs all CSS files to be minified and compressed as it can save up to 65.9 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (65%)

Requests Now

17

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ro Li Chess. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ro.lichess.org

ro.lichess.org

474 ms

css

css

89 ms

common.css

common.css

41 ms

board.css

board.css

29 ms

home.css

home.css

48 ms

cburnett.css

cburnett.css

46 ms

bb5e97a98333e2e9a59d041bf3a249437bca4f5f_chess_efficiency_marketing-512.png

bb5e97a98333e2e9a59d041bf3a249437bca4f5f_chess_efficiency_marketing-512.png

128 ms

jquery.min.js

jquery.min.js

40 ms

deps.min.js

deps.min.js

6 ms

moment.min.js

moment.min.js

166 ms

big.js

big.js

40 ms

lichess.lobby.min.js

lichess.lobby.min.js

38 ms

ro.js

ro.js

193 ms

ro.js

ro.js

185 ms

140b14ba2d229e56d261cfcc7f890ab0405bc043_tshirt.png

140b14ba2d229e56d261cfcc7f890ab0405bc043_tshirt.png

126 ms

3d03bf529bc2e6a0c5ef9b64d489c2285de2da23_explorer-icon.png

3d03bf529bc2e6a0c5ef9b64d489c2285de2da23_explorer-icon.png

126 ms

brown.png

brown.png

35 ms

analytics.js

analytics.js

18 ms

Accessibility Review

ro.lichess.org accessibility score

92

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.

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

Image elements do not have [alt] attributes

Best Practices

ro.lichess.org 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

ro.lichess.org SEO score

83

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

    RO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ro.lichess.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Romanian language. Our system also found out that Ro.lichess.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

ro.lichess.org

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