Report Summary

  • 0

    Performance

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

Page Load Speed

1.2 sec in total

First Response

273 ms

Resources Loaded

851 ms

Page Rendered

53 ms

sudoku.ws screenshot

About Website

Click here to check amazing Sudoku content for United States. Otherwise, check out these important facts you probably never knew about sudoku.ws

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Key Findings

We analyzed Sudoku.ws page load time and found that the first response time was 273 ms and then it took 904 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

sudoku.ws performance score

0

Network Requests Diagram

sudoku.ws

273 ms

wc_landing.dhtml

512 ms

layout.css

65 ms

jquery-3.5.0.min.js

68 ms

jquery-migrate-3.0.0.js

68 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Sudoku.ws, 95% (21 requests) were made to Website.ws. The less responsive or slowest element that took the longest time to load (512 ms) relates to the external source Website.ws.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 kB (17%)

Content Size

8.8 kB

After Optimization

7.4 kB

In fact, the total size of Sudoku.ws main page is 8.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 8.3 kB which makes up the majority of the site volume.

HTML Optimization

-46%

Potential reduce by 264 B

  • Original 570 B
  • After minification 563 B
  • After compression 306 B

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 264 B or 46% of the original size.

CSS Optimization

-15%

Potential reduce by 1.2 kB

  • Original 8.3 kB
  • After minification 8.3 kB
  • After compression 7.1 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.ws needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 15% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sudoku. According to our analytics all requests are already optimized.

Accessibility Review

sudoku.ws accessibility score

68

Accessibility Issues

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

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

sudoku.ws best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

sudoku.ws SEO score

91

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sudoku.ws can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Sudoku.ws 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

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