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1sudoku.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

1sudoku.com

Sudoku - Play free Sudoku online

Page Load Speed

1.1 sec in total

First Response

267 ms

Resources Loaded

644 ms

Page Rendered

145 ms

1sudoku.com screenshot

About Website

Visit 1sudoku.com now to see the best up-to-date 1 Sudoku content for United States and also check out these interesting facts you probably never knew about 1sudoku.com

Just click & Play sudoku online for free on mobile, tablet or computer, with 5 difficulty levels: easy, medium, hard, expert and evil. Also print sudoku for free and discover sudoku variants to play o...

Visit 1sudoku.com

Key Findings

We analyzed 1sudoku.com page load time and found that the first response time was 267 ms and then it took 789 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

1sudoku.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value1,160 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value9.4 s

30/100

10%

Network Requests Diagram

1sudoku.com

267 ms

style1.min.css

89 ms

enhanced.min.css

162 ms

js

68 ms

adsbygoogle.js

166 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original 1sudoku.com, 8% (1 request) were made to Googletagmanager.com and 8% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (267 ms) belongs to the original domain 1sudoku.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.8 kB (11%)

Content Size

99.4 kB

After Optimization

88.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 1sudoku.com main page is 99.4 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. Only 10% of websites need less resources to load. Javascripts take 65.4 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 10.5 kB

  • Original 14.7 kB
  • After minification 13.1 kB
  • After compression 4.2 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 1.6 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 10.5 kB or 71% of the original size.

Image Optimization

-2%

Potential reduce by 259 B

  • Original 15.2 kB
  • After minification 14.9 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. 1 Sudoku images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 18 B

  • Original 65.4 kB
  • After minification 65.4 kB
  • After compression 65.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 32 B

  • Original 4.1 kB
  • After minification 4.1 kB
  • After compression 4.1 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. 1sudoku.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 1 Sudoku. According to our analytics all requests are already optimized.

Network Requests Diagram

1sudoku.com

1sudoku.com

267 ms

style1.min.css

style1.min.css

89 ms

enhanced.min.css

enhanced.min.css

162 ms

js

js

68 ms

adsbygoogle.js

adsbygoogle.js

166 ms

logo-sudoku.png

logo-sudoku.png

81 ms

sprite.svg

sprite.svg

83 ms

sudoku.png

sudoku.png

158 ms

sudoku-16x16.png

sudoku-16x16.png

160 ms

sudoku-killer.png

sudoku-killer.png

159 ms

sudoku-4x4.png

sudoku-4x4.png

161 ms

sudoku-6x6.png

sudoku-6x6.png

160 ms

icofont.woff

icofont.woff

84 ms

Accessibility Review

1sudoku.com accessibility score

100

Accessibility Issues

Best Practices

1sudoku.com 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

General

Impact

Issue

High

Page has valid source maps

SEO Factors

1sudoku.com SEO score

100

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 1sudoku.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 1sudoku.com 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

1sudoku.com

Open Graph data is detected on the main page of 1 Sudoku. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: