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

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

szsjs.en.alibaba.com

Shenzhen SJS Technology Limited - Consumer Electronics, Cameras

Page Load Speed

3.4 sec in total

First Response

89 ms

Resources Loaded

3 sec

Page Rendered

286 ms

szsjs.en.alibaba.com screenshot

About Website

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

Shenzhen SJS Technology Limited, Experts in Manufacturing and Exporting Consumer Electronics, Cameras and 0 more Products.

Visit szsjs.en.alibaba.com

Key Findings

We analyzed Szsjs.en.alibaba.com page load time and found that the first response time was 89 ms and then it took 3.3 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

szsjs.en.alibaba.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value4,630 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.565

12/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

szsjs.en.alibaba.com

89 ms

szsjs.en.alibaba.com

630 ms

49 ms

98 ms

header.css

116 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Szsjs.en.alibaba.com, 28% (28 requests) were made to S.alicdn.com and 21% (21 requests) were made to Sc02.alicdn.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.0 MB (62%)

Content Size

6.5 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szsjs.en.alibaba.com main page is 6.5 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

-80%

Potential reduce by 353.1 kB

  • Original 441.5 kB
  • After minification 437.6 kB
  • After compression 88.4 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 353.1 kB or 80% of the original size.

Image Optimization

-44%

Potential reduce by 177.7 kB

  • Original 407.5 kB
  • After minification 229.8 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, Sz SJS En Alibaba needs image optimization as it can save up to 177.7 kB or 44% 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 283.2 kB

  • Original 394.1 kB
  • After minification 343.3 kB
  • After compression 110.9 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. Szsjs.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 283.2 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (48%)

Requests Now

89

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sz SJS 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 30 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

szsjs.en.alibaba.com

szsjs.en.alibaba.com

89 ms

szsjs.en.alibaba.com

szsjs.en.alibaba.com

630 ms

49 ms

98 ms

header.css

header.css

116 ms

header.js

header.js

115 ms

218 ms

web-index.css

web-index.css

96 ms

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113 ms

177 ms

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783 ms

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946 ms

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1032 ms

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953 ms

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579 ms

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943 ms

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967 ms

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608 ms

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950 ms

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967 ms

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953 ms

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607 ms

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782 ms

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536 ms

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949 ms

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949 ms

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552 ms

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779 ms

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763 ms

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788 ms

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788 ms

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948 ms

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793 ms

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792 ms

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938 ms

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939 ms

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945 ms

roboto-regular.woff

roboto-regular.woff

86 ms

roboto-medium.woff

roboto-medium.woff

84 ms

roboto-light.woff

roboto-light.woff

82 ms

roboto-thin.woff

roboto-thin.woff

84 ms

roboto-bold.woff

roboto-bold.woff

84 ms

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198 ms

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TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

82 ms

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79 ms

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81 ms

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192 ms

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1143 ms

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1183 ms

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1458 ms

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1591 ms

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970 ms

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922 ms

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1141 ms

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1002 ms

personTipsInfo.do

personTipsInfo.do

58 ms

awsc.js

awsc.js

101 ms

73 ms

index.js

index.js

55 ms

87 ms

14 ms

index.js

index.js

12 ms

12 ms

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52 ms

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56 ms

icon-font.woff

icon-font.woff

14 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

67 ms

index.css

index.css

34 ms

eg.js

eg.js

93 ms

et_n.js

et_n.js

89 ms

um.js

um.js

183 ms

sc.globalxman.appscene

sc.globalxman.appscene

141 ms

footer.css

footer.css

135 ms

index.js

index.js

183 ms

index.js

index.js

184 ms

7.gif

7.gif

59 ms

wu.json

wu.json

492 ms

light0.5x.png

light0.5x.png

57 ms

pages_version.html

pages_version.html

96 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

39 ms

defer-common.js

defer-common.js

93 ms

i.alicdn.com

i.alicdn.com

89 ms

index.js

index.js

35 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

203 ms

baxiaCommon.js

baxiaCommon.js

166 ms

rp

rp

1842 ms

index.js

index.js

165 ms

index.web.css

index.web.css

152 ms

index.web.js

index.web.js

164 ms

store-proxy.html

store-proxy.html

135 ms

countryCurrencyDataService

countryCurrencyDataService

308 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

119 ms

personRoleInfo.do

personRoleInfo.do

109 ms

notification.do

notification.do

254 ms

aksb.min.js

aksb.min.js

184 ms

availableSurveyQuery.json

availableSurveyQuery.json

101 ms

iconfont.woff

iconfont.woff

6 ms

iconfont.woff

iconfont.woff

5 ms

um.json

um.json

54 ms

getUmid.do

getUmid.do

8 ms

Accessibility Review

szsjs.en.alibaba.com accessibility score

41

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.

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

szsjs.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

szsjs.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 Szsjs.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 Szsjs.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

szsjs.en.alibaba.com

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