Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

km4.jszks.cn

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Page Load Speed

39 sec in total

First Response

9.5 sec

Resources Loaded

27.9 sec

Page Rendered

1.6 sec

km4.jszks.cn screenshot

About Website

Welcome to km4.jszks.cn homepage info - get ready to check Km 4 Jszks best content for China right away, or after learning these important things about km4.jszks.cn

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Key Findings

We analyzed Km4.jszks.cn page load time and found that the first response time was 9.5 sec and then it took 29.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

km4.jszks.cn performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.107

88/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

km4.jszks.cn

9541 ms

func.js

1119 ms

jquery.min.js

3458 ms

top.js

3697 ms

ca.js

885 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 7% of them (5 requests) were addressed to the original Km4.jszks.cn, 11% (8 requests) were made to Pos.baidu.com and 10% (7 requests) were made to Ww1.sinaimg.cn. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Img.jszks.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 337.5 kB (18%)

Content Size

1.9 MB

After Optimization

1.5 MB

In fact, the total size of Km4.jszks.cn main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 62.7 kB

  • Original 79.2 kB
  • After minification 76.4 kB
  • After compression 16.5 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 62.7 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 69.8 kB

  • Original 1.4 MB
  • After minification 1.3 MB

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. Km 4 Jszks images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 205.1 kB

  • Original 384.6 kB
  • After minification 384.3 kB
  • After compression 179.5 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 205.1 kB or 53% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (43%)

Requests Now

65

After Optimization

37

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Km 4 Jszks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

km4.jszks.cn accessibility score

69

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-*] attributes do not match their roles

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

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

km4.jszks.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

km4.jszks.cn SEO score

62

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Km4.jszks.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 Km4.jszks.cn main page’s claimed encoding is gb2312. 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 Km 4 Jszks. 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: