Access news.cctv.com. 新闻频道

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.253

49/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

news.cctv.com

2915 ms

style.css

1946 ms

a2.js

621 ms

style.css

1009 ms

jquery-1.7.2.min.js

419 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 5% of them (3 requests) were addressed to the original News.cctv.com, 27% (18 requests) were made to P1.img.cctvpic.com and 14% (9 requests) were made to P5.img.cctvpic.com. The less responsive or slowest element that took the longest time to load (8 sec) relates to the external source Pic.fastapi.net.

Content Size

1.6 MB

After Optimization

1.1 MB

In fact, the total size of News.cctv.com main page is 1.6 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 973.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 157.3 kB

Original 188.4 kB
After minification 184.7 kB
After compression 31.1 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 157.3 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 31.0 kB

Original 973.1 kB
After minification 942.1 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. News Cctv images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 220.8 kB

Original 366.6 kB
After minification 356.8 kB
After compression 145.8 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 220.8 kB or 60% of the original size.

CSS Optimization

-87%

Potential reduce by 104.8 kB

Original 121.2 kB
After minification 106.3 kB
After compression 16.4 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. News.cctv.com needs all CSS files to be minified and compressed as it can save up to 104.8 kB or 87% of the original size.

Requests Now

After Optimization

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of News Cctv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 News.cctv.com 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 News.cctv.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

news.cctv.com

Open Graph description is not detected on the main page of News Cctv. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

新闻频道_央视网(cctv.com)

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

news.cctv.com

style.css

a2.js

style.css

jquery-1.7.2.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

news.cctv.com

style.css

a2.js

style.css

jquery-1.7.2.min.js

login.js

ProBox.js

style.css

style.css

share.js

style.css

style.css

weatherJson.js

uvstat.js

cooper_wx_141230.png

cooper_wb_13730_151019.png

100011_gongshang.gif

1388976541477_720.jpg

ghs.png

cooper_qq_10886_140506.png

cooper_kx_10886_140506.png

cooper_rr_10886_140506.png

img.gif

wangjing.gif

jdi2_20131008_9313.jpg

col_20131008_9313.gif

gpt.js

picshow_i_cur_131211_9805_131225.jpg

picshow_i_131211_9805_131225.jpg

icon_9805_131225.jpg

1458081354915_939.jpg

pubads_impl_82.js

bg_picshow_jrtt_131212_9805_131225.png

compose07_9805_131225.jpg

index.json

1451529093828_945.jpg

ads

container.html

1457160005966_396.jpg

epg24h

1427940076452_670.jpg

adx

weather.do