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ledlcdsz.en.alibaba.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

ledlcdsz.en.alibaba.com

Shenzhen UAD Electromechanical Co., Ltd.

Page Load Speed

3.7 sec in total

First Response

91 ms

Resources Loaded

3.1 sec

Page Rendered

521 ms

ledlcdsz.en.alibaba.com screenshot

About Website

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

Shenzhen UAD Electromechanical Co., Ltd., Experts in Manufacturing and Exporting and 0 more Products.

Visit ledlcdsz.en.alibaba.com

Key Findings

We analyzed Ledlcdsz.en.alibaba.com page load time and found that the first response time was 91 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

ledlcdsz.en.alibaba.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value4,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.159

73/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

ledlcdsz.en.alibaba.com

91 ms

ledlcdsz.en.alibaba.com

575 ms

339 ms

333 ms

header.css

361 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Ledlcdsz.en.alibaba.com, 51% (46 requests) were made to S.alicdn.com and 8% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.2 MB (62%)

Content Size

6.7 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ledlcdsz.en.alibaba.com main page is 6.7 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 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 450.3 kB

  • Original 546.9 kB
  • After minification 543.0 kB
  • After compression 96.6 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 450.3 kB or 82% of the original size.

Image Optimization

-46%

Potential reduce by 177.2 kB

  • Original 389.0 kB
  • After minification 211.8 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, Ledlcdsz En Alibaba needs image optimization as it can save up to 177.2 kB or 46% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 3.2 MB

  • Original 5.3 MB
  • After minification 5.3 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 3.2 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 295.8 kB

  • Original 408.5 kB
  • After minification 357.7 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. Ledlcdsz.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 295.8 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (65%)

Requests Now

79

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ledlcdsz 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

ledlcdsz.en.alibaba.com

ledlcdsz.en.alibaba.com

91 ms

ledlcdsz.en.alibaba.com

ledlcdsz.en.alibaba.com

575 ms

339 ms

333 ms

header.css

header.css

361 ms

header.js

header.js

363 ms

38 ms

web-index.css

web-index.css

358 ms

web-index.css

web-index.css

359 ms

web-index.css

web-index.css

1055 ms

web-index.css

web-index.css

360 ms

web-index.css

web-index.css

359 ms

362 ms

358 ms

index.js

index.js

358 ms

359 ms

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816 ms

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H0410b38799794140932d3d53ee498719D.jpg

698 ms

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TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

129 ms

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416 ms

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H07b8f348f0c34eddb4f7e1c0b445206eZ.png_480x480.png

424 ms

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223 ms

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330 ms

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375 ms

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377 ms

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TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

184 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

4 ms

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TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

45 ms

roboto-regular.woff

roboto-regular.woff

40 ms

roboto-medium.woff

roboto-medium.woff

41 ms

roboto-light.woff

roboto-light.woff

40 ms

roboto-thin.woff

roboto-thin.woff

40 ms

roboto-bold.woff

roboto-bold.woff

41 ms

personTipsInfo.do

personTipsInfo.do

297 ms

awsc.js

awsc.js

41 ms

111 ms

et_n.js

et_n.js

16 ms

um.js

um.js

72 ms

eg.js

eg.js

541 ms

wu.json

wu.json

591 ms

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O1CN01eP7P8d1y1kdsWFgqQ_!!6000000006519-2-tps-1920-200.png

73 ms

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H0410b38799794140932d3d53ee498719D.jpg

44 ms

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H22b19388652b4a57ba374369b3b680dc0.png_100x100.png

29 ms

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Ha19e0a93191049629ed0e34b2e9855e7U.png_100x100.png

89 ms

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Hb4e5b994eca24adbbdae7b8726f589bag.jpg

910 ms

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H78927d29845f4951a3ca925ef28b1bfct.png_q80.jpg

32 ms

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H2ca7c634f6934604bcd7d53e873fe7d29.png

387 ms

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197 ms

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H07b8f348f0c34eddb4f7e1c0b445206eZ.png_480x480.png

31 ms

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242 ms

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H6c48cf3f0a1a445db2f7084ed04e7550D.png

733 ms

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35 ms

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730 ms

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703 ms

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589 ms

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H9969c34e40f64659be84ef2ede19e01ep.jpg_480x480.jpg

389 ms

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O1CN01lsY1P61yvAejjEVHt_!!6000000006640-2-tps-584-560.png

105 ms

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96 ms

16 ms

icon-font.woff

icon-font.woff

406 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

98 ms

7.gif

7.gif

25 ms

index.js

index.js

42 ms

index.js

index.js

40 ms

sc.globalxman.appscene

sc.globalxman.appscene

20 ms

footer.css

footer.css

346 ms

baxiaCommon.js

baxiaCommon.js

9 ms

rp

rp

1331 ms

um.json

um.json

56 ms

getUmid.do

getUmid.do

30 ms

light0.5x.png

light0.5x.png

44 ms

pages_version.html

pages_version.html

231 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

12 ms

defer-common.js

defer-common.js

113 ms

i.alicdn.com

i.alicdn.com

60 ms

index.js

index.js

19 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

11 ms

index.js

index.js

19 ms

store-proxy.html

store-proxy.html

114 ms

countryCurrencyDataService

countryCurrencyDataService

166 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

71 ms

personRoleInfo.do

personRoleInfo.do

62 ms

notification.do

notification.do

182 ms

index.web.css

index.web.css

13 ms

index.web.js

index.web.js

27 ms

availableSurveyQuery.json

availableSurveyQuery.json

44 ms

iconfont.woff

iconfont.woff

8 ms

iconfont.woff

iconfont.woff

8 ms

index.js

index.js

20 ms

index.css

index.css

9 ms

Accessibility Review

ledlcdsz.en.alibaba.com accessibility score

64

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Some elements have a [tabindex] value greater than 0

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

ledlcdsz.en.alibaba.com best practices score

67

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

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

ledlcdsz.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 Ledlcdsz.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 Ledlcdsz.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

ledlcdsz.en.alibaba.com

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