Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 76

    SEO

    Google-friendlier than
    44% of websites

cbg.cn

视界网——重庆网络广播电视台

Page Load Speed

39.1 sec in total

First Response

3 sec

Resources Loaded

35.2 sec

Page Rendered

934 ms

cbg.cn screenshot

About Website

Welcome to cbg.cn homepage info - get ready to check Cbg best content for China right away, or after learning these important things about cbg.cn

视界网www.cbg.cn(重庆网络广播电视台)是经国家新闻出版广电总局批准的,以互联网、移动通信网等新兴信息网络为节目传播载体的新形态广播电视播出机构,是重庆市委、市政府在新媒体领域的喉舌,由重庆电视台和重庆人民广播电台联合开办。

Visit cbg.cn

Key Findings

We analyzed Cbg.cn page load time and found that the first response time was 3 sec and then it took 36.1 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

cbg.cn performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value9.4 s

31/100

10%

Network Requests Diagram

cbg.cn

3003 ms

index2015.css

6333 ms

front.css

4296 ms

swiper.min.css

4497 ms

jquery-1.10.1.min.js

7499 ms

Our browser made a total of 133 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cbg.cn, 64% (85 requests) were made to Upload.cbg.cn and 31% (41 requests) were made to Img.cbg.cn. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Upload.cbg.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 9.8 MB (66%)

Content Size

14.8 MB

After Optimization

5.0 MB

In fact, the total size of Cbg.cn main page is 14.8 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. 35% of websites need less resources to load. Images take 14.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 122.3 kB

  • Original 152.8 kB
  • After minification 128.4 kB
  • After compression 30.5 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. This page needs HTML code to be minified as it can gain 24.3 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 122.3 kB or 80% of the original size.

Image Optimization

-66%

Potential reduce by 9.5 MB

  • Original 14.4 MB
  • After minification 4.9 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. Obviously, Cbg needs image optimization as it can save up to 9.5 MB or 66% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 123.8 kB

  • Original 179.0 kB
  • After minification 170.8 kB
  • After compression 55.2 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 123.8 kB or 69% of the original size.

CSS Optimization

-85%

Potential reduce by 95.0 kB

  • Original 112.2 kB
  • After minification 80.4 kB
  • After compression 17.1 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. Cbg.cn needs all CSS files to be minified and compressed as it can save up to 95.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (22%)

Requests Now

129

After Optimization

100

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cbg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

cbg.cn accessibility score

66

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

cbg.cn best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cbg.cn SEO score

76

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

High

robots.txt is not valid

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cbg.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 Cbg.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 Cbg. 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: