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

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

justdu.en.alibaba.com

Shenzhen Justdu Electronic Co., Ltd. - Kids & Toys, Gifts & Crafts

Page Load Speed

3 sec in total

First Response

214 ms

Resources Loaded

2.5 sec

Page Rendered

242 ms

justdu.en.alibaba.com screenshot

About Website

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

Shenzhen Justdu Electronic Co., Ltd., Experts in Manufacturing and Exporting Kids & Toys, Gifts & Crafts and 0 more Products.

Visit justdu.en.alibaba.com

Key Findings

We analyzed Justdu.en.alibaba.com page load time and found that the first response time was 214 ms and then it took 2.7 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

justdu.en.alibaba.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value4,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.584

11/100

15%

TTI (Time to Interactive)

Value26.9 s

0/100

10%

Network Requests Diagram

justdu.en.alibaba.com

214 ms

justdu.en.alibaba.com

1019 ms

63 ms

85 ms

header.css

84 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Justdu.en.alibaba.com, 48% (32 requests) were made to S.alicdn.com and 10% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.8 MB (62%)

Content Size

6.2 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Justdu.en.alibaba.com main page is 6.2 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. 65% of websites need less resources to load. Javascripts take 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 397.9 kB

  • Original 490.8 kB
  • After minification 486.9 kB
  • After compression 92.9 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 397.9 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, Justdu 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

-60%

Potential reduce by 3.1 MB

  • Original 5.2 MB
  • After minification 5.2 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 3.1 MB or 60% of the original size.

CSS Optimization

-72%

Potential reduce by 293.4 kB

  • Original 405.2 kB
  • After minification 354.3 kB
  • After compression 111.8 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. Justdu.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 293.4 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (75%)

Requests Now

56

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Justdu 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

justdu.en.alibaba.com

justdu.en.alibaba.com

214 ms

justdu.en.alibaba.com

justdu.en.alibaba.com

1019 ms

63 ms

85 ms

header.css

header.css

84 ms

header.js

header.js

98 ms

83 ms

web-index.css

web-index.css

100 ms

web-index.css

web-index.css

61 ms

web-index.css

web-index.css

97 ms

web-index.css

web-index.css

98 ms

web-index.css

web-index.css

98 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

63 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

65 ms

He9249481a53444afa8870a178245dee1S.jpg

He9249481a53444afa8870a178245dee1S.jpg

1247 ms

awsc.js

awsc.js

79 ms

51 ms

personTipsInfo.do

personTipsInfo.do

66 ms

H610bc2ab1c09401cb13c646cb5811134U.jpg_q80.jpg

H610bc2ab1c09401cb13c646cb5811134U.jpg_q80.jpg

251 ms

eg.js

eg.js

258 ms

roboto-regular.woff

roboto-regular.woff

27 ms

roboto-medium.woff

roboto-medium.woff

25 ms

roboto-light.woff

roboto-light.woff

15 ms

roboto-thin.woff

roboto-thin.woff

48 ms

roboto-bold.woff

roboto-bold.woff

48 ms

et_n.js

et_n.js

41 ms

um.js

um.js

130 ms

233 ms

97 ms

94 ms

index.js

index.js

94 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

175 ms

94 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

180 ms

sc.globalxman.appscene

sc.globalxman.appscene

75 ms

icon-font.woff

icon-font.woff

40 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

115 ms

wu.json

wu.json

63 ms

footer.css

footer.css

16 ms

light0.5x.png

light0.5x.png

27 ms

pages_version.html

pages_version.html

271 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

29 ms

defer-common.js

defer-common.js

106 ms

i.alicdn.com

i.alicdn.com

51 ms

index.js

index.js

74 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

12 ms

index.js

index.js

30 ms

index.js

index.js

52 ms

7.gif

7.gif

30 ms

index.js

index.js

227 ms

um.json

um.json

191 ms

baxiaCommon.js

baxiaCommon.js

162 ms

rp

rp

963 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

187 ms

store-proxy.html

store-proxy.html

148 ms

countryCurrencyDataService

countryCurrencyDataService

580 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

119 ms

personRoleInfo.do

personRoleInfo.do

107 ms

notification.do

notification.do

135 ms

getUmid.do

getUmid.do

38 ms

index.web.css

index.web.css

33 ms

index.web.js

index.web.js

61 ms

availableSurveyQuery.json

availableSurveyQuery.json

52 ms

iconfont.woff

iconfont.woff

14 ms

iconfont.woff

iconfont.woff

8 ms

index.js

index.js

37 ms

index.css

index.css

10 ms

Accessibility Review

justdu.en.alibaba.com accessibility score

69

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

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

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

justdu.en.alibaba.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

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

justdu.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 Justdu.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 Justdu.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

justdu.en.alibaba.com

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