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21shu.com screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

21shu.com

404 Not Found

Page Load Speed

13.6 sec in total

First Response

3.3 sec

Resources Loaded

10.1 sec

Page Rendered

143 ms

21shu.com screenshot

About Website

Visit 21shu.com now to see the best up-to-date 21 Shu content and also check out these interesting facts you probably never knew about 21shu.com

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Key Findings

We analyzed 21shu.com page load time and found that the first response time was 3.3 sec and then it took 10.3 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

21shu.com performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.7 s

81/100

10%

Network Requests Diagram

21shu.com

3301 ms

client_old.js

167 ms

domain_parking.js

1543 ms

ci.js

687 ms

jquery.min.js

247 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original 21shu.com, 38% (5 requests) were made to Cpro.baidustatic.com and 31% (4 requests) were made to A1.dnbizcdn.com. The less responsive or slowest element that took the longest time to load (4.3 sec) relates to the external source Cpro.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 275.4 kB (62%)

Content Size

445.6 kB

After Optimization

170.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of 21shu.com main page is 445.6 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. 20% of websites need less resources to load. Javascripts take 408.4 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 13.6 kB

  • Original 20.1 kB
  • After minification 20.1 kB
  • After compression 6.5 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 13.6 kB or 68% of the original size.

Image Optimization

-22%

Potential reduce by 3.8 kB

  • Original 17.0 kB
  • After minification 13.2 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. Obviously, 21 Shu needs image optimization as it can save up to 3.8 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 258.0 kB

  • Original 408.4 kB
  • After minification 398.6 kB
  • After compression 150.4 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 258.0 kB or 63% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (42%)

Requests Now

12

After Optimization

7

  • AJAX
  • Images
  • JavaScript

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Shu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

21shu.com

21shu.com

3301 ms

client_old.js

client_old.js

167 ms

domain_parking.js

domain_parking.js

1543 ms

ci.js

ci.js

687 ms

jquery.min.js

jquery.min.js

247 ms

caf.js

caf.js

162 ms

yumi.jpg

yumi.jpg

867 ms

baidu.png

baidu.png

83 ms

uijs.php

uijs.php

4294 ms

cpro.js

cpro.js

722 ms

icon_12px.png

icon_12px.png

444 ms

sync.htm

sync.htm

443 ms

sync.htm

sync.htm

477 ms

Accessibility Review

21shu.com accessibility score

54

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

High

[lang] attributes do not have a valid value

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

21shu.com best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

21shu.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

Links are not crawlable

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21shu.com 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 21shu.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

21shu.com

Open Graph description is not detected on the main page of 21 Shu. 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: