Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sokoban.ws

推箱子

Page Load Speed

20.4 sec in total

First Response

8.8 sec

Resources Loaded

11.4 sec

Page Rendered

209 ms

sokoban.ws screenshot

About Website

Visit sokoban.ws now to see the best up-to-date Sokoban content for United States and also check out these interesting facts you probably never knew about sokoban.ws

Monthly Online Sokoban Competition, Sokoban for Linux, Sokoban Utilities.

Visit sokoban.ws

Key Findings

We analyzed Sokoban.ws page load time and found that the first response time was 8.8 sec and then it took 11.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

sokoban.ws performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.9 s

100/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

sokoban.ws

8768 ms

styles.css

584 ms

banner5c.png

1483 ms

dropdowntabs.js

893 ms

bluetabs.css

612 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 21% of them (9 requests) were addressed to the original Sokoban.ws, 24% (10 requests) were made to A.disquscdn.com and 10% (4 requests) were made to Rc.revolvermaps.com. The less responsive or slowest element that took the longest time to load (8.8 sec) belongs to the original domain Sokoban.ws.

Page Optimization Overview & Recommendations

Page size can be reduced by 557.5 kB (64%)

Content Size

866.3 kB

After Optimization

308.8 kB

In fact, the total size of Sokoban.ws main page is 866.3 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. 40% of websites need less resources to load. Javascripts take 795.3 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 30.2 kB

  • Original 42.6 kB
  • After minification 40.9 kB
  • After compression 12.4 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 30.2 kB or 71% of the original size.

Image Optimization

-5%

Potential reduce by 1.3 kB

  • Original 26.8 kB
  • After minification 25.5 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. Sokoban images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 524.9 kB

  • Original 795.3 kB
  • After minification 786.0 kB
  • After compression 270.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 524.9 kB or 66% of the original size.

CSS Optimization

-72%

Potential reduce by 1.1 kB

  • Original 1.6 kB
  • After minification 1.0 kB
  • After compression 440 B

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. Sokoban.ws needs all CSS files to be minified and compressed as it can save up to 1.1 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (45%)

Requests Now

40

After Optimization

22

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sokoban. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sokoban.ws accessibility score

72

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

sokoban.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

sokoban.ws SEO score

85

Search Engine Optimization Advices

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

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sokoban.ws 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 Sokoban.ws main page’s claimed encoding is gb2312. 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 Sokoban. 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: