Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

yayun.cntv.cn

2014仁川亚运会|2014亚运会直播_体育_央视网(cctv.com)

Page Load Speed

31.2 sec in total

First Response

3.8 sec

Resources Loaded

25.5 sec

Page Rendered

2 sec

yayun.cntv.cn screenshot

About Website

Click here to check amazing Yayun Cntv content for China. Otherwise, check out these important facts you probably never knew about yayun.cntv.cn

第十七届亚运会于2014年9月19日至10月4日在韩国仁川举行.2014亚运会专题提供亚运会视频直播,亚运会赛程,亚运会视频,亚运会项目,亚运会明星,亚运会新闻,亚运会金牌榜,亚运会中国代表团的所有亚运相关信息服务.

Visit yayun.cntv.cn

Key Findings

We analyzed Yayun.cntv.cn page load time and found that the first response time was 3.8 sec and then it took 27.4 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.

Performance Metrics

yayun.cntv.cn performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value7.7 s

46/100

10%

Network Requests Diagram

yayun.cntv.cn

3823 ms

a2.js

530 ms

style.css

1616 ms

jquery-1.7.2.min.js

1004 ms

main.js

1331 ms

Our browser made a total of 169 requests to load all elements on the main page. We found that 4% of them (7 requests) were addressed to the original Yayun.cntv.cn, 62% (105 requests) were made to P1.img.cctvpic.com and 6% (10 requests) were made to P5.img.cctvpic.com. The less responsive or slowest element that took the longest time to load (17.4 sec) relates to the external source App1.vote.cntv.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 285.8 kB (19%)

Content Size

1.5 MB

After Optimization

1.2 MB

In fact, the total size of Yayun.cntv.cn main page is 1.5 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. 50% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 113.0 kB

  • Original 141.8 kB
  • After minification 137.4 kB
  • After compression 28.8 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 113.0 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 97.6 kB

  • Original 1.2 MB
  • After minification 1.1 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. Yayun Cntv images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 30.0 kB

  • Original 79.9 kB
  • After minification 69.3 kB
  • After compression 49.9 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 30.0 kB or 38% of the original size.

CSS Optimization

-85%

Potential reduce by 45.3 kB

  • Original 53.4 kB
  • After minification 49.7 kB
  • After compression 8.1 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. Yayun.cntv.cn needs all CSS files to be minified and compressed as it can save up to 45.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (13%)

Requests Now

167

After Optimization

145

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yayun Cntv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

yayun.cntv.cn accessibility score

52

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

yayun.cntv.cn best practices score

50

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

SEO Factors

yayun.cntv.cn SEO score

54

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yayun.cntv.cn 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 Yayun.cntv.cn 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 Yayun Cntv. 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: