Tools & Wizards About Us
uc.cn screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

uc.cn

UC浏览器_官网下载

Page Load Speed

5.6 sec in total

First Response

1.2 sec

Resources Loaded

4.4 sec

Page Rendered

100 ms

uc.cn screenshot

About Website

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

通过UC官网，您可以快速、安全地下载UC浏览器，时刻刷新世界！

Visit uc.cn

Key Findings

We analyzed Uc.cn page load time and found that the first response time was 1.2 sec and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

uc.cn performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value5,600 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

uc.cn

1171 ms

www.uc.cn

1402 ms

index.css

260 ms

aplus_custom.js

258 ms

seallogo.dll

1012 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 25% of them (4 requests) were addressed to the original Uc.cn, 50% (8 requests) were made to Image.uc.cn and 13% (2 requests) were made to G.alicdn.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Uc.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.7 kB (22%)

Content Size

749.7 kB

After Optimization

583.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Uc.cn main page is 749.7 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. 55% of websites need less resources to load. Javascripts take 359.7 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 102.8 kB

  • Original 169.7 kB
  • After minification 169.7 kB
  • After compression 66.9 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 102.8 kB or 61% of the original size.

Image Optimization

-27%

Potential reduce by 56.2 kB

  • Original 206.7 kB
  • After minification 150.5 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, Uc needs image optimization as it can save up to 56.2 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 7.6 kB

  • Original 359.7 kB
  • After minification 359.4 kB
  • After compression 352.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 44 B

  • Original 13.6 kB
  • After minification 13.6 kB
  • After compression 13.5 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. Uc.cn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (36%)

Requests Now

14

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Uc. 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

uc.cn

uc.cn

1171 ms

www.uc.cn

www.uc.cn

1402 ms

index.css

index.css

260 ms

aplus_custom.js

aplus_custom.js

258 ms

seallogo.dll

seallogo.dll

1012 ms

manifest.js

manifest.js

67 ms

index.js

index.js

69 ms

aplus_v2.js

aplus_v2.js

295 ms

logo-464a3.png

logo-464a3.png

41 ms

qr-c4957.png

qr-c4957.png

50 ms

beian.png

beian.png

42 ms

weixinqr-a90b5.png

weixinqr-a90b5.png

43 ms

163 ms

eg.js

eg.js

1266 ms

client_version

client_version

266 ms

getBanners

getBanners

516 ms

Accessibility Review

uc.cn accessibility score

73

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

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

uc.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

uc.cn SEO score

92

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

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

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 Uc.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 Uc.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

uc.cn

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