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vcom.en.alibaba.com screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

vcom.en.alibaba.com

Vcom Communication Technology Co., Ltd. - Computer Cable, Network Cable

Page Load Speed

2.8 sec in total

First Response

227 ms

Resources Loaded

2.3 sec

Page Rendered

259 ms

vcom.en.alibaba.com screenshot

About Website

Welcome to vcom.en.alibaba.com homepage info - get ready to check Vcom En Alibaba best content for China right away, or after learning these important things about vcom.en.alibaba.com

Vcom Communication Technology Co., Ltd., Experts in Manufacturing and Exporting Computer Cable, Network Cable and 0 more Products.

Visit vcom.en.alibaba.com

Key Findings

We analyzed Vcom.en.alibaba.com page load time and found that the first response time was 227 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

vcom.en.alibaba.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value4,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.547

13/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

vcom.en.alibaba.com

227 ms

vcom.en.alibaba.com

579 ms

117 ms

150 ms

header.css

172 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Vcom.en.alibaba.com, 36% (33 requests) were made to S.alicdn.com and 13% (12 requests) were made to Sc02.alicdn.com. The less responsive or slowest element that took the longest time to load (985 ms) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.4 MB (60%)

Content Size

5.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vcom.en.alibaba.com main page is 5.8 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 366.5 kB

  • Original 453.9 kB
  • After minification 450.0 kB
  • After compression 87.4 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 366.5 kB or 81% of the original size.

Image Optimization

-16%

Potential reduce by 8.9 kB

  • Original 57.1 kB
  • After minification 48.2 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, Vcom En Alibaba needs image optimization as it can save up to 8.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 2.9 MB

  • Original 4.9 MB
  • After minification 4.9 MB
  • After compression 2.1 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 2.9 MB or 58% of the original size.

CSS Optimization

-64%

Potential reduce by 203.2 kB

  • Original 315.9 kB
  • After minification 265.1 kB
  • After compression 112.8 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. Vcom.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 203.2 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (56%)

Requests Now

81

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vcom 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 29 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vcom.en.alibaba.com

vcom.en.alibaba.com

227 ms

vcom.en.alibaba.com

vcom.en.alibaba.com

579 ms

117 ms

150 ms

header.css

header.css

172 ms

header.js

header.js

184 ms

34 ms

web-index.css

web-index.css

169 ms

web-index.css

web-index.css

170 ms

web-index.css

web-index.css

181 ms

web-index.css

web-index.css

181 ms

web-index.css

web-index.css

242 ms

354 ms

180 ms

index.js

index.js

182 ms

183 ms

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H774cde101e384cfc907339856d736e4fQ.jpg

576 ms

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HTB1c0pMV7PoK1RjSZKbq6x1IXXar.jpg

543 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

233 ms

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He26a66deebe04f6091cf9f47ada2e92d9.jpg

228 ms

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H3a18016579d142f29f005dd46873e749z.jpg_q80.jpg

213 ms

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TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

270 ms

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569 ms

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HTB1velFVYvpK1RjSZPiq6zmwXXat.jpg

649 ms

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HTB18Vd.V4naK1RjSZFtq6zC2VXah.jpg

569 ms

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HTB19D_UXACy2eVjSZSyq6xukVXa1.jpg

853 ms

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HTB1LuRVV4YaK1RjSZFnq6y80pXaG.jpg

569 ms

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649 ms

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813 ms

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HTB1fA0jVVzqK1RjSZFoq6zfcXXa3.jpg

649 ms

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HTB1L029VVzqK1RjSZFvq6AB7VXaw.jpg

648 ms

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Hb53b3b3a90d94baa9cf7a7eca70a0a16Q.jpg

814 ms

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HTB1qSNnV3HqK1RjSZJnq6zNLpXal.jpg

813 ms

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Hd83179db3b1e44a9a4c1eb706a395f9aR.jpg

617 ms

HTB14OFAV9zqK1RjSZPxq6A4tVXaz.jpg

HTB14OFAV9zqK1RjSZPxq6A4tVXaz.jpg

619 ms

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HTB1SyA9VSzqK1RjSZPcq6zTepXaf.jpg

566 ms

HTB1hnXGV3HqK1RjSZFgq6y7JXXah.jpg

HTB1hnXGV3HqK1RjSZFgq6y7JXXah.jpg

537 ms

HTB16IpKV7voK1RjSZFNq6AxMVXaM.jpg

HTB16IpKV7voK1RjSZFNq6AxMVXaM.jpg

619 ms

HTB1PwR7V4naK1RjSZFBq6AW7VXas.jpg

HTB1PwR7V4naK1RjSZFBq6AW7VXas.jpg

646 ms

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HTB1PNxXV3TqK1RjSZPhq6xfOFXaS.jpg

649 ms

H08908929d38f44a397a56c50f1dd3895y.jpg

H08908929d38f44a397a56c50f1dd3895y.jpg

646 ms

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820 ms

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808 ms

Hfbfbace8ce6c4bbca879f50923eb23165.jpg

Hfbfbace8ce6c4bbca879f50923eb23165.jpg

646 ms

awsc.js

awsc.js

199 ms

172 ms

personTipsInfo.do

personTipsInfo.do

484 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

98 ms

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TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

111 ms

Hcbd72ce6872247cc8b749c0feddea66fA.jpg

Hcbd72ce6872247cc8b749c0feddea66fA.jpg

300 ms

eg.js

eg.js

233 ms

roboto-regular.woff

roboto-regular.woff

85 ms

roboto-medium.woff

roboto-medium.woff

10 ms

roboto-light.woff

roboto-light.woff

48 ms

roboto-thin.woff

roboto-thin.woff

9 ms

roboto-bold.woff

roboto-bold.woff

9 ms

icon-font.woff

icon-font.woff

48 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

346 ms

et_n.js

et_n.js

109 ms

um.js

um.js

194 ms

39 ms

sc.globalxman.appscene

sc.globalxman.appscene

54 ms

index.js

index.js

153 ms

wu.json

wu.json

608 ms

footer.css

footer.css

10 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

67 ms

index.js

index.js

71 ms

index.js

index.js

123 ms

7.gif

7.gif

73 ms

light0.5x.png

light0.5x.png

41 ms

pages_version.html

pages_version.html

293 ms

defer-common.js

defer-common.js

134 ms

i.alicdn.com

i.alicdn.com

126 ms

index.js

index.js

50 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

35 ms

baxiaCommon.js

baxiaCommon.js

61 ms

rp

rp

985 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

239 ms

index.css

index.css

36 ms

index.js

index.js

159 ms

store-proxy.html

store-proxy.html

128 ms

countryCurrencyDataService

countryCurrencyDataService

203 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

139 ms

personRoleInfo.do

personRoleInfo.do

128 ms

notification.do

notification.do

181 ms

index.web.css

index.web.css

22 ms

index.web.js

index.web.js

63 ms

availableSurveyQuery.json

availableSurveyQuery.json

76 ms

iconfont.woff

iconfont.woff

6 ms

iconfont.woff

iconfont.woff

6 ms

um.json

um.json

54 ms

getUmid.do

getUmid.do

10 ms

Accessibility Review

vcom.en.alibaba.com accessibility score

43

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

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.

Best Practices

vcom.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

Serves images with low resolution

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

vcom.en.alibaba.com SEO score

86

Search Engine Optimization Advices

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 uses 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 Vcom.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 Vcom.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

vcom.en.alibaba.com

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