Tools & Wizards About Us
zhuanzhuan.com screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

zhuanzhuan.com

转转_转转二手官方验，买卖二手不一样

Page Load Speed

7.1 sec in total

First Response

517 ms

Resources Loaded

6.6 sec

Page Rendered

58 ms

zhuanzhuan.com screenshot

About Website

Click here to check amazing Zhuanzhuan content for China. Otherwise, check out these important facts you probably never knew about zhuanzhuan.com

转转APP提供多品类的二手交易服务，并在国内较早创立平台验机服务——“官方验”；全国有3大质检中心，超1000名真人验机师。转转“官方验”手机会经过20道外观检测，55道功能检测，让用户放心买省心卖。

Visit zhuanzhuan.com

Key Findings

We analyzed Zhuanzhuan.com page load time and found that the first response time was 517 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

zhuanzhuan.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.137

80/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

zhuanzhuan.com

517 ms

zhuanzhuan.com

860 ms

www.zhuanzhuan.com

504 ms

www.zhuanzhuan.com

889 ms

swiper-site-bundle.min.css

1564 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 29% of them (4 requests) were addressed to the original Zhuanzhuan.com, 57% (8 requests) were made to S1.zhuanstatic.com and 14% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source S1.zhuanstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 kB (8%)

Content Size

28.5 kB

After Optimization

26.3 kB

  • HTML
  • CSS

In fact, the total size of Zhuanzhuan.com main page is 28.5 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. 15% of websites need less resources to load. CSS take 25.7 kB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 1.6 kB

  • Original 2.8 kB
  • After minification 2.8 kB
  • After compression 1.2 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 1.6 kB or 57% of the original size.

CSS Optimization

-2%

Potential reduce by 585 B

  • Original 25.7 kB
  • After minification 25.7 kB
  • After compression 25.1 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. Zhuanzhuan.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (60%)

Requests Now

10

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zhuanzhuan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zhuanzhuan.com

zhuanzhuan.com

517 ms

zhuanzhuan.com

zhuanzhuan.com

860 ms

www.zhuanzhuan.com

www.zhuanzhuan.com

504 ms

www.zhuanzhuan.com

www.zhuanzhuan.com

889 ms

swiper-site-bundle.min.css

swiper-site-bundle.min.css

1564 ms

jquery.3.3.1.min.js

jquery.3.3.1.min.js

1824 ms

slick_1_8_1.min.js

slick_1_8_1.min.js

2194 ms

es6-promise.auto.min.js

es6-promise.auto.min.js

2337 ms

swiper-site-bundle.min.js

swiper-site-bundle.min.js

2335 ms

PCwebsite.d083799b049e07039a2e.css

PCwebsite.d083799b049e07039a2e.css

2372 ms

vendor.d083799b049e07039a2e.js

vendor.d083799b049e07039a2e.js

2342 ms

PCwebsite.d083799b049e07039a2e.js

PCwebsite.d083799b049e07039a2e.js

2650 ms

hm.js

hm.js

1095 ms

hm.gif

hm.gif

316 ms

Accessibility Review

zhuanzhuan.com accessibility score

69

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

zhuanzhuan.com 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

zhuanzhuan.com SEO score

85

Search Engine Optimization Advices

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zhuanzhuan.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Zhuanzhuan.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

zhuanzhuan.com

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