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020zn.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

020zn.com

www.020zn.com-官网首页

Page Load Speed

3.5 sec in total

First Response

430 ms

Resources Loaded

3 sec

Page Rendered

120 ms

020zn.com screenshot

About Website

Click here to check amazing 020 Zn content. Otherwise, check out these important facts you probably never knew about 020zn.com

020zn.com

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Key Findings

We analyzed 020zn.com page load time and found that the first response time was 430 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

020zn.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value5.2 s

61/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.5

16/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

020zn.com

430 ms

jquery.js

1283 ms

style.css

1366 ms

stencil.css

1132 ms

2882802.js

264 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original 020zn.com, 67% (8 requests) were made to 4.cn and 8% (1 request) were made to Libs.baidu.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source 4.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.7 kB (28%)

Content Size

213.7 kB

After Optimization

154.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 020zn.com main page is 213.7 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. 15% of websites need less resources to load. Images take 108.2 kB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 2.9 kB

  • Original 5.2 kB
  • After minification 4.7 kB
  • After compression 2.2 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 2.9 kB or 57% of the original size.

Image Optimization

-10%

Potential reduce by 10.7 kB

  • Original 108.2 kB
  • After minification 97.5 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. 020 Zn images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 40.3 kB

  • Original 81.5 kB
  • After minification 81.5 kB
  • After compression 41.2 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 40.3 kB or 49% of the original size.

CSS Optimization

-30%

Potential reduce by 5.7 kB

  • Original 18.8 kB
  • After minification 18.8 kB
  • After compression 13.0 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. 020zn.com needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 30% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 020 Zn. According to our analytics all requests are already optimized.

Network Requests Diagram

020zn.com

020zn.com

430 ms

jquery.js

jquery.js

1283 ms

style.css

style.css

1366 ms

stencil.css

stencil.css

1132 ms

2882802.js

2882802.js

264 ms

a-pic.jpg

a-pic.jpg

512 ms

a-header-bg.jpg

a-header-bg.jpg

256 ms

a-banner.jpg

a-banner.jpg

500 ms

icon.png

icon.png

511 ms

a-content-bg.jpg

a-content-bg.jpg

751 ms

go1

go1

61 ms

a-pic.jpg

a-pic.jpg

804 ms

Accessibility Review

020zn.com accessibility score

64

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.

Tables and lists

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

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

020zn.com best practices score

67

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

020zn.com SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 020zn.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 020zn.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

020zn.com

Open Graph description is not detected on the main page of 020 Zn. 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: