Tools & Wizards About Us
21cn.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

21cn.com

21CN网慢直播

Page Load Speed

68.9 sec in total

First Response

718 ms

Resources Loaded

67.5 sec

Page Rendered

675 ms

21cn.com screenshot

About Website

Click here to check amazing 21 Cn content for China. Otherwise, check out these important facts you probably never knew about 21cn.com

慢直播，真生活，中国电信基于天翼视联网平台，针对行业客户，打造慢直播平台及视联中国慢直播品牌；全方位服务各级政府、企业和文化单位，为其提供慢直播全流程服务；同时联合央视网及其他媒体，共同提升政府及企业品牌形象，宣传乡村振兴成果，助力政企实现资源价值变现。

Visit 21cn.com

Key Findings

We analyzed 21cn.com page load time and found that the first response time was 718 ms and then it took 68.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 24 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

21cn.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value310 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

Network Requests Diagram

21cn.com

718 ms

getJs.js

754 ms

vendors.ba16e9c4.css

245 ms

app.110ddacb.css

489 ms

vendors.899155c3.js

1672 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 31% of them (13 requests) were addressed to the original 21cn.com, 67% (28 requests) were made to Review.21cn.com and 2% (1 request) were made to Ux.21cn.com. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Review.21cn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 129.3 kB (2%)

Content Size

6.3 MB

After Optimization

6.2 MB

  • HTML
  • Images
  • CSS

In fact, the total size of 21cn.com main page is 6.3 MB. 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. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 61.0 kB

  • Original 70.9 kB
  • After minification 70.6 kB
  • After compression 9.9 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 61.0 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 68.2 kB

  • Original 6.3 MB
  • After minification 6.2 MB

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. 21 Cn images are well optimized though.

CSS Optimization

-2%

Potential reduce by 151 B

  • Original 8.4 kB
  • After minification 8.4 kB
  • After compression 8.2 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. 21cn.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Cn. According to our analytics all requests are already optimized.

Network Requests Diagram

21cn.com

21cn.com

718 ms

getJs.js

getJs.js

754 ms

vendors.ba16e9c4.css

vendors.ba16e9c4.css

245 ms

app.110ddacb.css

app.110ddacb.css

489 ms

vendors.899155c3.js

vendors.899155c3.js

1672 ms

app.2b39363f.js

app.2b39363f.js

729 ms

getHomePage

getHomePage

593 ms

header_bg.0d698560.png

header_bg.0d698560.png

762 ms

white_logo.faa859b4.png

white_logo.faa859b4.png

241 ms

pc_home_bg.d1cef940.png

pc_home_bg.d1cef940.png

2174 ms

1644997744428.jpg

1644997744428.jpg

19951 ms

banner

banner

252 ms

1658894709722.jpg

1658894709722.jpg

19786 ms

1658894386271.jpg

1658894386271.jpg

19786 ms

1658894171220.jpg

1658894171220.jpg

19785 ms

1658893991563.jpg

1658893991563.jpg

19785 ms

1658893256932.jpg

1658893256932.jpg

19786 ms

1648892565640.jpg

1648892565640.jpg

19785 ms

1651129982376.jpg

1651129982376.jpg

19785 ms

1679562364822.jpg

1679562364822.jpg

19786 ms

1652079265828.png

1652079265828.png

19785 ms

1651116419062.jpg

1651116419062.jpg

19785 ms

1658893602394.jpg

1658893602394.jpg

19785 ms

1660722359528.png

1660722359528.png

19784 ms

1650437529032.jpg

1650437529032.jpg

19785 ms

1651137760458.jpg

1651137760458.jpg

19785 ms

1651130563749.jpg

1651130563749.jpg

19784 ms

banner_load.84dcfa97.png

banner_load.84dcfa97.png

248 ms

img_load.292804ed.png

img_load.292804ed.png

241 ms

getRedirect

getRedirect

263 ms

1644369307590.png

1644369307590.png

19778 ms

1644369876988.png

1644369876988.png

19779 ms

1644369924875.png

1644369924875.png

19779 ms

1658893991563.jpg

1658893991563.jpg

19948 ms

1644997744428.jpg

1644997744428.jpg

19954 ms

1658894709722.jpg

1658894709722.jpg

19953 ms

1658894386271.jpg

1658894386271.jpg

19952 ms

1658894171220.jpg

1658894171220.jpg

19951 ms

1658893991563.jpg

1658893991563.jpg

17598 ms

1644997744428.jpg

1644997744428.jpg

12832 ms

1658894709722.jpg

1658894709722.jpg

8264 ms

1658894386271.jpg

1658894386271.jpg

4295 ms

Accessibility Review

21cn.com accessibility score

93

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.

Best Practices

21cn.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

21cn.com SEO score

85

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

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21cn.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that 21cn.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

21cn.com

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