Tools & Wizards About Us
zzknown.en.alibaba.com screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

zzknown.en.alibaba.com

Zhengzhou Known Imp.&Exp. Co., Ltd.

Page Load Speed

4 sec in total

First Response

11 ms

Resources Loaded

3.1 sec

Page Rendered

820 ms

zzknown.en.alibaba.com screenshot

About Website

Click here to check amazing Zz Known En Alibaba content for China. Otherwise, check out these important facts you probably never knew about zzknown.en.alibaba.com

Zhengzhou Known Imp.&Exp. Co., Ltd., Experts in Manufacturing and Exporting and 0 more Products.

Visit zzknown.en.alibaba.com

Key Findings

We analyzed Zzknown.en.alibaba.com page load time and found that the first response time was 11 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

zzknown.en.alibaba.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value4,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.505

16/100

15%

TTI (Time to Interactive)

Value30.4 s

0/100

10%

Network Requests Diagram

zzknown.en.alibaba.com

11 ms

zzknown.en.alibaba.com

1119 ms

63 ms

48 ms

header.css

47 ms

Our browser made a total of 155 requests to load all elements on the main page. We found that 3% of them (4 requests) were addressed to the original Zzknown.en.alibaba.com, 28% (44 requests) were made to S.alicdn.com and 26% (41 requests) were made to Sc02.alicdn.com. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source Sc02.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.1 MB (52%)

Content Size

7.9 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zzknown.en.alibaba.com main page is 7.9 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. Only a small number of websites need less resources to load. Javascripts take 6.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 496.3 kB

  • Original 609.4 kB
  • After minification 605.5 kB
  • After compression 113.2 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 496.3 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 15.4 kB

  • Original 255.5 kB
  • After minification 240.1 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. Zz Known En Alibaba images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 3.3 MB

  • Original 6.7 MB
  • After minification 6.7 MB
  • After compression 3.3 MB

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 3.3 MB or 50% of the original size.

CSS Optimization

-66%

Potential reduce by 286.0 kB

  • Original 432.8 kB
  • After minification 381.8 kB
  • After compression 146.8 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. Zzknown.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 286.0 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 74 (52%)

Requests Now

143

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zz Known En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zzknown.en.alibaba.com

zzknown.en.alibaba.com

11 ms

zzknown.en.alibaba.com

zzknown.en.alibaba.com

1119 ms

63 ms

48 ms

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header.css

47 ms

header.js

header.js

120 ms

53 ms

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web-index.css

57 ms

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119 ms

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51 ms

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53 ms

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157 ms

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117 ms

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115 ms

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undefined

undefined

190 ms

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1196 ms

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Accessibility Review

zzknown.en.alibaba.com accessibility score

65

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

Image elements do not have [alt] attributes

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

zzknown.en.alibaba.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

zzknown.en.alibaba.com SEO score

71

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

High

Document doesn't have a valid hreflang

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zzknown.en.alibaba.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Zzknown.en.alibaba.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

zzknown.en.alibaba.com

Open Graph data is detected on the main page of Zz Known En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: