Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

junsai.com.cn

高周波-高频机-高频机械-吸塑机研发定制-上海骏精赛自动化机械有限公司

Page Load Speed

50.5 sec in total

First Response

2.7 sec

Resources Loaded

47.4 sec

Page Rendered

464 ms

junsai.com.cn screenshot

About Website

Click here to check amazing Junsai content. Otherwise, check out these important facts you probably never knew about junsai.com.cn

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Visit junsai.com.cn

Key Findings

We analyzed Junsai.com.cn page load time and found that the first response time was 2.7 sec and then it took 47.8 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 19 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

junsai.com.cn performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value18.6 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value610 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0.262

47/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

junsai.com.cn

2678 ms

www.junsai.com.cn

18328 ms

uaredirect.js

505 ms

index.css

3698 ms

language.js

14266 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 36% of them (28 requests) were addressed to the original Junsai.com.cn, 21% (16 requests) were made to Qiao.baidu.com and 5% (4 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Junsai.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 133.7 kB (49%)

Content Size

275.6 kB

After Optimization

141.9 kB

In fact, the total size of Junsai.com.cn main page is 275.6 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. 20% of websites need less resources to load. Javascripts take 134.1 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 47.5 kB

  • Original 63.8 kB
  • After minification 62.1 kB
  • After compression 16.3 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 47.5 kB or 74% of the original size.

Image Optimization

-14%

Potential reduce by 5.0 kB

  • Original 34.2 kB
  • After minification 29.2 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, Junsai needs image optimization as it can save up to 5.0 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-35%

Potential reduce by 46.8 kB

  • Original 134.1 kB
  • After minification 133.1 kB
  • After compression 87.4 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 46.8 kB or 35% of the original size.

CSS Optimization

-79%

Potential reduce by 34.6 kB

  • Original 43.5 kB
  • After minification 32.3 kB
  • After compression 8.9 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. Junsai.com.cn needs all CSS files to be minified and compressed as it can save up to 34.6 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (72%)

Requests Now

54

After Optimization

15

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Junsai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

junsai.com.cn accessibility score

57

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.

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

junsai.com.cn best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

junsai.com.cn SEO score

83

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Junsai.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 Junsai.com.cn main page’s claimed encoding is gbk. 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

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