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yzh.com.cn screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

yzh.com.cn

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Page Load Speed

1.4 sec in total

First Response

674 ms

Resources Loaded

681 ms

Page Rendered

62 ms

yzh.com.cn screenshot

About Website

Welcome to yzh.com.cn homepage info - get ready to check Yzh best content right away, or after learning these important things about yzh.com.cn

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Key Findings

We analyzed Yzh.com.cn page load time and found that the first response time was 674 ms and then it took 743 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster. This domain responded with an error, which can significantly jeopardize Yzh.com.cn rating and web reputation

Performance Metrics

yzh.com.cn performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

yzh.com.cn

674 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Yzh.com.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (674 ms) belongs to the original domain Yzh.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.7 kB (46%)

Content Size

136.2 kB

After Optimization

73.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yzh.com.cn main page is 136.2 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 54.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 443 B

  • Original 538 B
  • After minification 140 B
  • After compression 95 B

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 398 B, which is 74% 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 443 B or 82% of the original size.

Image Optimization

-12%

Potential reduce by 6.7 kB

  • Original 54.6 kB
  • After minification 47.8 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, Yzh needs image optimization as it can save up to 6.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 27.7 kB

  • Original 45.4 kB
  • After minification 45.4 kB
  • After compression 17.7 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 27.7 kB or 61% of the original size.

CSS Optimization

-78%

Potential reduce by 27.9 kB

  • Original 35.6 kB
  • After minification 29.1 kB
  • After compression 7.8 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. Yzh.com.cn needs all CSS files to be minified and compressed as it can save up to 27.9 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

yzh.com.cn

yzh.com.cn

674 ms

Accessibility Review

yzh.com.cn accessibility score

51

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

yzh.com.cn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

yzh.com.cn SEO score

90

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yzh.com.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 Yzh.com.cn main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

yzh.com.cn

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