Tools & Wizards About Us
chess973.org screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

chess973.org

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Page Load Speed

7.2 sec in total

First Response

1.6 sec

Resources Loaded

5.5 sec

Page Rendered

186 ms

chess973.org screenshot

About Website

Welcome to chess973.org homepage info - get ready to check Chess 973 best content right away, or after learning these important things about chess973.org

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Key Findings

We analyzed Chess973.org page load time and found that the first response time was 1.6 sec and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

chess973.org performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

71/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

chess973.org

1555 ms

style.css

1400 ms

jquery-1.8.3.js

3024 ms

PageCommon.js

930 ms

common_tool_api.js

915 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 Chess973.org and no external sources were called. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Chess973.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 290.3 kB (58%)

Content Size

497.6 kB

After Optimization

207.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chess973.org main page is 497.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 287.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 10.9 kB

  • Original 14.1 kB
  • After minification 9.3 kB
  • After compression 3.2 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 4.8 kB, which is 34% 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 10.9 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 8.3 kB

  • Original 165.1 kB
  • After minification 156.8 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. Chess 973 images are well optimized though.

JavaScript Optimization

-85%

Potential reduce by 243.6 kB

  • Original 287.1 kB
  • After minification 151.1 kB
  • After compression 43.5 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 243.6 kB or 85% of the original size.

CSS Optimization

-88%

Potential reduce by 27.6 kB

  • Original 31.3 kB
  • After minification 25.7 kB
  • After compression 3.8 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. Chess973.org needs all CSS files to be minified and compressed as it can save up to 27.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (27%)

Requests Now

11

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chess 973. 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 JavaScripts and as a result speed up the page load time.

Network Requests Diagram

chess973.org

chess973.org

1555 ms

style.css

style.css

1400 ms

jquery-1.8.3.js

jquery-1.8.3.js

3024 ms

PageCommon.js

PageCommon.js

930 ms

common_tool_api.js

common_tool_api.js

915 ms

common_tool_api.js

common_tool_api.js

667 ms

banner.jpg

banner.jpg

1335 ms

nav_bg.png

nav_bg.png

489 ms

search.jpg

search.jpg

380 ms

9b61e2fe-be3c-4db4-9a76-a85a1eb478b8_1.JPG

9b61e2fe-be3c-4db4-9a76-a85a1eb478b8_1.JPG

1396 ms

nav1.png

nav1.png

441 ms

chess973.org

chess973.org

599 ms

Accessibility Review

chess973.org 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

Links do not have a discernible name

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

chess973.org best practices score

67

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

High

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

chess973.org SEO score

62

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chess973.org can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Chess973.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

chess973.org

Open Graph description is not detected on the main page of Chess 973. 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: