Tools & Wizards About Us
zhuanlan.zhihu.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

zhuanlan.zhihu.com

知乎专栏 - 随心写作，自由表达 - 知乎

Page Load Speed

20.8 sec in total

First Response

2.3 sec

Resources Loaded

18.4 sec

Page Rendered

193 ms

zhuanlan.zhihu.com screenshot

About Website

Visit zhuanlan.zhihu.com now to see the best up-to-date Zhuanlan Zhihu content for China and also check out these interesting facts you probably never knew about zhuanlan.zhihu.com

知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立...

Visit zhuanlan.zhihu.com

Key Findings

We analyzed Zhuanlan.zhihu.com page load time and found that the first response time was 2.3 sec and then it took 18.5 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

zhuanlan.zhihu.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value2,550 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

zhuanlan.zhihu.com

2258 ms

9344d771.main.css

3024 ms

742179a5.angular.all.js

15397 ms

6a0151c3.compiled.js

14723 ms

70a6000a.scripts.js

4893 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 18% of them (2 requests) were addressed to the original Zhuanlan.zhihu.com, 45% (5 requests) were made to Z1.zhimg.com and 27% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (15.4 sec) relates to the external source Z1.zhimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 815.2 kB (67%)

Content Size

1.2 MB

After Optimization

393.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zhuanlan.zhihu.com main page is 1.2 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. Javascripts take 845.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 41.5 kB

  • Original 53.8 kB
  • After minification 52.6 kB
  • After compression 12.4 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 41.5 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 38.5 kB
  • After minification 38.5 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. Zhuanlan Zhihu images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 549.4 kB

  • Original 845.1 kB
  • After minification 845.1 kB
  • After compression 295.6 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 549.4 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 224.2 kB

  • Original 271.3 kB
  • After minification 271.2 kB
  • After compression 47.0 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. Zhuanlan.zhihu.com needs all CSS files to be minified and compressed as it can save up to 224.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (38%)

Requests Now

8

After Optimization

5

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zhuanlan Zhihu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zhuanlan.zhihu.com

zhuanlan.zhihu.com

2258 ms

9344d771.main.css

9344d771.main.css

3024 ms

742179a5.angular.all.js

742179a5.angular.all.js

15397 ms

6a0151c3.compiled.js

6a0151c3.compiled.js

14723 ms

70a6000a.scripts.js

70a6000a.scripts.js

4893 ms

ga.js

ga.js

222 ms

me

me

696 ms

114c9a67.icomoon.ttf

114c9a67.icomoon.ttf

593 ms

__utm.gif

__utm.gif

31 ms

__utm.gif

__utm.gif

25 ms

collect

collect

88 ms

Accessibility Review

zhuanlan.zhihu.com accessibility score

88

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

zhuanlan.zhihu.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

zhuanlan.zhihu.com SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 Zhuanlan.zhihu.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 Zhuanlan.zhihu.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

zhuanlan.zhihu.com

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