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sudoku-league.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sudoku-league.com

Sudoku League :: How quick are you?

Page Load Speed

1.6 sec in total

First Response

342 ms

Resources Loaded

1.2 sec

Page Rendered

72 ms

sudoku-league.com screenshot

About Website

Visit sudoku-league.com now to see the best up-to-date Sudoku League content and also check out these interesting facts you probably never knew about sudoku-league.com

Free online Sudoku time-trial tournaments. Compare your Sudoku skills with people all over the world, chat with them, simply enjoy! All services are free!

Visit sudoku-league.com

Key Findings

We analyzed Sudoku-league.com page load time and found that the first response time was 342 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

sudoku-league.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

www.sudoku-league.com

342 ms

main.css

207 ms

en.gif

238 ms

cz.gif

314 ms

podheadsl.jpg

120 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Sudoku-league.com and no external sources were called. The less responsive or slowest element that took the longest time to load (342 ms) belongs to the original domain Sudoku-league.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.5 kB (70%)

Content Size

16.4 kB

After Optimization

5.0 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Sudoku-league.com main page is 16.4 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. CSS take 8.5 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 4.5 kB

  • Original 7.3 kB
  • After minification 7.3 kB
  • After compression 2.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 4.5 kB or 62% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 648 B
  • After minification 648 B

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. Sudoku League images are well optimized though.

CSS Optimization

-82%

Potential reduce by 6.9 kB

  • Original 8.5 kB
  • After minification 7.4 kB
  • After compression 1.5 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. Sudoku-league.com needs all CSS files to be minified and compressed as it can save up to 6.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (83%)

Requests Now

12

After Optimization

2

  • Images
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sudoku League. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

www.sudoku-league.com

www.sudoku-league.com

342 ms

main.css

main.css

207 ms

en.gif

en.gif

238 ms

cz.gif

cz.gif

314 ms

podheadsl.jpg

podheadsl.jpg

120 ms

podmenu.gif

podmenu.gif

121 ms

podmenuhead.gif

podmenuhead.gif

143 ms

podmenupata.gif

podmenupata.gif

225 ms

backh2b.gif

backh2b.gif

252 ms

backh3b.gif

backh3b.gif

262 ms

backmaindivdulezity.gif

backmaindivdulezity.gif

263 ms

backh4.gif

backh4.gif

264 ms

podmenuhover.gif

podmenuhover.gif

277 ms

Accessibility Review

sudoku-league.com accessibility score

76

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.

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

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

sudoku-league.com 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

sudoku-league.com SEO score

93

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sudoku-league.com 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 Sudoku-league.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sudoku-league.com

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