Tools & Wizards About Us
wch.cn screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

wch.cn

首页 - 南京沁恒微电子股份有限公司

Page Load Speed

55.5 sec in total

First Response

17.7 sec

Resources Loaded

37.7 sec

Page Rendered

240 ms

wch.cn screenshot

About Website

Welcome to wch.cn homepage info - get ready to check Wch best content for China right away, or after learning these important things about wch.cn

江苏沁恒股份有限公司是技术主导型的高新技术企业，核心业务是接口类、SOC/MCU类集成电路及嵌入式软件的研发和销售，产品主要应用于物联网、金融税控、信息安全、工业控制等领域。 江苏沁恒股份有限公司是技术主导型的高新技术企业，核心业务是接口类、SOC/MCU类集成电路及嵌入式软件的研发和销售，产品主要应用于物联网、金融税控、信息安全、工业控制等领域

Visit wch.cn

Key Findings

We analyzed Wch.cn page load time and found that the first response time was 17.7 sec and then it took 37.9 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. Unfortunately, there were 8 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

wch.cn performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

wch.cn

17652 ms

app.min.css

4934 ms

logo.png

1122 ms

search.png

613 ms

chair.jpg

6206 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 81% of them (17 requests) were addressed to the original Wch.cn, 5% (1 request) were made to S95.cnzz.com and 5% (1 request) were made to Oz.cnzz.com. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Wch.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 80.0 kB (24%)

Content Size

327.8 kB

After Optimization

247.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wch.cn main page is 327.8 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. Only 5% of websites need less resources to load. Images take 263.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 16.5 kB

  • Original 20.2 kB
  • After minification 12.9 kB
  • After compression 3.7 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. This page needs HTML code to be minified as it can gain 7.3 kB, which is 36% 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 16.5 kB or 82% of the original size.

Image Optimization

-12%

Potential reduce by 31.6 kB

  • Original 263.7 kB
  • After minification 232.1 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, Wch needs image optimization as it can save up to 31.6 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

-63%

Potential reduce by 10.0 kB

  • Original 15.7 kB
  • After minification 15.7 kB
  • After compression 5.8 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 10.0 kB or 63% of the original size.

CSS Optimization

-78%

Potential reduce by 21.8 kB

  • Original 28.1 kB
  • After minification 28.1 kB
  • After compression 6.3 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. Wch.cn needs all CSS files to be minified and compressed as it can save up to 21.8 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wch. According to our analytics all requests are already optimized.

Network Requests Diagram

wch.cn

wch.cn

17652 ms

app.min.css

app.min.css

4934 ms

logo.png

logo.png

1122 ms

search.png

search.png

613 ms

chair.jpg

chair.jpg

6206 ms

park.jpg

park.jpg

19563 ms

campus.jpg

campus.jpg

7465 ms

community.jpg

community.jpg

9507 ms

home_banner1.jpg

home_banner1.jpg

20277 ms

home_banner2.jpg

home_banner2.jpg

20278 ms

home_banner3.jpg

home_banner3.jpg

20278 ms

home_CH559.jpg

home_CH559.jpg

20249 ms

home_CH395.jpg

home_CH395.jpg

20248 ms

home_CH9343.jpg

home_CH9343.jpg

20248 ms

weixin_120.jpg

weixin_120.jpg

19810 ms

common.min.js

common.min.js

20002 ms

app.min.js

app.min.js

11044 ms

z_stat.php

z_stat.php

2986 ms

stat.htm

stat.htm

363 ms

core.php

core.php

828 ms

pic1.gif

pic1.gif

1565 ms

Accessibility Review

wch.cn accessibility score

57

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

wch.cn best practices score

83

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

SEO Factors

wch.cn SEO score

80

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wch.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 Wch.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

wch.cn

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