Report Summary

  • 26

    Performance

    Renders faster than
    47% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

chess.net

chess.net • Free Online Chess

Page Load Speed

628 ms in total

First Response

35 ms

Resources Loaded

401 ms

Page Rendered

192 ms

chess.net screenshot

About Website

Click here to check amazing Chess content. Otherwise, check out these important facts you probably never knew about chess.net

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 chess.net

Key Findings

We analyzed Chess.net page load time and found that the first response time was 35 ms and then it took 593 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

chess.net performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value5,330 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

Network Requests Diagram

chess.net

35 ms

www.chess.net

97 ms

styles.css

8 ms

jquery.js

14 ms

jquery.validate.js

13 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 90% of them (44 requests) were addressed to the original Chess.net, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Twitter-badges.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (146 ms) relates to the external source Facebook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 126.8 kB (38%)

Content Size

334.5 kB

After Optimization

207.7 kB

In fact, the total size of Chess.net main page is 334.5 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. 30% of websites need less resources to load. Images take 148.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 25.2 kB

  • Original 30.0 kB
  • After minification 18.3 kB
  • After compression 4.7 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 11.6 kB, which is 39% 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 25.2 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 2.4 kB

  • Original 148.4 kB
  • After minification 146.0 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. Chess images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 78.5 kB

  • Original 131.4 kB
  • After minification 128.8 kB
  • After compression 52.9 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 78.5 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 20.7 kB

  • Original 24.7 kB
  • After minification 20.7 kB
  • After compression 4.0 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. Chess.net needs all CSS files to be minified and compressed as it can save up to 20.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (11%)

Requests Now

47

After Optimization

42

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

chess.net accessibility score

47

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

<object> elements do not have alternate text

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

chess.net best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

chess.net SEO score

46

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

Image elements do not have [alt] attributes

High

Document uses plugins

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Chess.net 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 Chess.net 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 Chess. 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: