Tools & Wizards About Us

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

sudokusolver.com

Sudoku Solver - Sudoku, Super Sudoku, Samurai Sudoku and Godoku

Page Load Speed

3.1 sec in total

First Response

325 ms

Resources Loaded

2.7 sec

Page Rendered

89 ms

About Website

Visit sudokusolver.com now to see the best up-to-date Sudoku Solver content for Singapore and also check out these interesting facts you probably never knew about sudokusolver.com

Intelligent Sudoku solvers, generators for all 3x3 Sudoku, 5-grid Samurai Sudoku, Killer Sudoku and 4x4 Super Sudoku puzzles plus Daily Sudoku.

Visit sudokusolver.com

Key Findings

We analyzed Sudokusolver.com page load time and found that the first response time was 325 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

sudokusolver.com performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value540 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

sudokusolver.com

325 ms

sudokusolver.com

1049 ms

Sudoku-Style.css

288 ms

Sudoku-Solver-Style.css

290 ms

Sudoku-Home-Style.css

291 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 78% of them (54 requests) were addressed to the original Sudokusolver.com, 4% (3 requests) were made to Connect.facebook.net and 4% (3 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Sudokusolver.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 108.1 kB (38%)

Content Size

285.9 kB

After Optimization

177.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sudokusolver.com main page is 285.9 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. 25% of websites need less resources to load. Javascripts take 186.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 18.5 kB

  • Original 25.5 kB
  • After minification 25.2 kB
  • After compression 7.0 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 18.5 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 736 B

  • Original 21.8 kB
  • After minification 21.0 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. Sudoku Solver images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 44.5 kB

  • Original 186.0 kB
  • After minification 184.0 kB
  • After compression 141.5 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 44.5 kB or 24% of the original size.

CSS Optimization

-84%

Potential reduce by 44.3 kB

  • Original 52.6 kB
  • After minification 43.6 kB
  • After compression 8.3 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. Sudokusolver.com needs all CSS files to be minified and compressed as it can save up to 44.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (26%)

Requests Now

65

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sudoku Solver. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sudokusolver.com accessibility score

65

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

sudokusolver.com best practices score

42

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sudokusolver.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    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 Sudokusolver.com 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 Sudokusolver.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

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