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

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

szvisioncn.en.alibaba.com

Shenzhen Vision Electronics Co., Ltd. - Smart Watch, Intelligent Bracelet

Page Load Speed

3.9 sec in total

First Response

13 ms

Resources Loaded

3.5 sec

Page Rendered

389 ms

szvisioncn.en.alibaba.com screenshot

About Website

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

Shenzhen Vision Electronics Co., Ltd., Experts in Manufacturing and Exporting Smart Watch, Intelligent Bracelet and 0 more Products.

Visit szvisioncn.en.alibaba.com

Key Findings

We analyzed Szvisioncn.en.alibaba.com page load time and found that the first response time was 13 ms and then it took 3.9 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

szvisioncn.en.alibaba.com performance score

28

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)

Value13.9 s

1/100

10%

TBT (Total Blocking Time)

Value5,970 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.063

2/100

15%

TTI (Time to Interactive)

Value27.8 s

0/100

10%

Network Requests Diagram

szvisioncn.en.alibaba.com

13 ms

szvisioncn.en.alibaba.com

647 ms

170 ms

197 ms

header.css

136 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Szvisioncn.en.alibaba.com, 63% (62 requests) were made to S.alicdn.com and 7% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (51%)

Content Size

3.5 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szvisioncn.en.alibaba.com main page is 3.5 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. 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 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 617.4 kB

  • Original 737.5 kB
  • After minification 733.5 kB
  • After compression 120.1 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 617.4 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 15.3 kB

  • Original 314.5 kB
  • After minification 299.1 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. Sz Vision Cn En Alibaba images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 910.3 kB

  • Original 2.2 MB
  • After minification 2.2 MB
  • After compression 1.3 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 910.3 kB or 42% of the original size.

CSS Optimization

-84%

Potential reduce by 214.5 kB

  • Original 254.5 kB
  • After minification 203.6 kB
  • After compression 40.0 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. Szvisioncn.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 214.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 59 (67%)

Requests Now

88

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sz Vision Cn 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 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

szvisioncn.en.alibaba.com

szvisioncn.en.alibaba.com

13 ms

szvisioncn.en.alibaba.com

szvisioncn.en.alibaba.com

647 ms

170 ms

197 ms

header.css

header.css

136 ms

header.js

header.js

212 ms

154 ms

web-index.css

web-index.css

142 ms

web-index.css

web-index.css

328 ms

web-index.css

web-index.css

212 ms

web-index.css

web-index.css

194 ms

web-index.css

web-index.css

255 ms

246 ms

240 ms

index.js

index.js

241 ms

238 ms

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TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

399 ms

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230 ms

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624 ms

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564 ms

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316 ms

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611 ms

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H9505c1d216cd460786f3ad1d37b957fax.jpg_250x250.jpg

721 ms

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Hc4bae96d68224e2ca3f921cd73bc8e5cX.jpg_250x250.jpg

462 ms

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892 ms

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1184 ms

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864 ms

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1046 ms

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878 ms

Hf049cfa977314f638d0854ef5edf9fbfh.jpg_350x350.jpg

Hf049cfa977314f638d0854ef5edf9fbfh.jpg_350x350.jpg

1264 ms

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H160895135af94a75aedc9a19e153d57en.jpg_350x350.jpg

1070 ms

Hc4bae96d68224e2ca3f921cd73bc8e5cX.jpg_350x350.jpg

Hc4bae96d68224e2ca3f921cd73bc8e5cX.jpg_350x350.jpg

1444 ms

H2433e70f44b24c67a82e3f4c2449e000C.jpg_350x350.jpg

H2433e70f44b24c67a82e3f4c2449e000C.jpg_350x350.jpg

1099 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

530 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

1028 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

1030 ms

awsc.js

awsc.js

83 ms

61 ms

personTipsInfo.do

personTipsInfo.do

47 ms

roboto-regular.woff

roboto-regular.woff

969 ms

roboto-medium.woff

roboto-medium.woff

969 ms

roboto-light.woff

roboto-light.woff

988 ms

roboto-thin.woff

roboto-thin.woff

991 ms

roboto-bold.woff

roboto-bold.woff

990 ms

eg.js

eg.js

323 ms

et_n.js

et_n.js

116 ms

um.js

um.js

115 ms

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1134 ms

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1649 ms

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Hc295c469f6854492a219d2fdfd93808eD.jpg

2272 ms

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1288 ms

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1343 ms

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1357 ms

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1931 ms

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1505 ms

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1641 ms

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1903 ms

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2326 ms

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2323 ms

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2324 ms

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574 ms

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TB1Z8vPSFXXXXXLXVXXXXXXXXXX-1519-200.png

318 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

182 ms

88 ms

icon-font.woff

icon-font.woff

1764 ms

He6fbe259ad024b47b42dfbc692cc9aa7H.jpg

He6fbe259ad024b47b42dfbc692cc9aa7H.jpg

2143 ms

wu.json

wu.json

558 ms

sc.globalxman.appscene

sc.globalxman.appscene

40 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

8 ms

index.js

index.js

20 ms

index.js

index.js

64 ms

7.gif

7.gif

2 ms

footer.css

footer.css

1639 ms

baxiaCommon.js

baxiaCommon.js

12 ms

rp

rp

936 ms

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1929 ms

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2274 ms

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2074 ms

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He6ddcf14bfbf44e6aa292bfa42e07b7cW.jpg

1972 ms

um.json

um.json

61 ms

getUmid.do

getUmid.do

158 ms

light0.5x.png

light0.5x.png

373 ms

pages_version.html

pages_version.html

35 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

21 ms

defer-common.js

defer-common.js

82 ms

i.alicdn.com

i.alicdn.com

67 ms

index.js

index.js

330 ms

index.web.css

index.web.css

303 ms

index.web.js

index.web.js

349 ms

index.js

index.js

208 ms

store-proxy.html

store-proxy.html

198 ms

countryCurrencyDataService

countryCurrencyDataService

223 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

123 ms

personRoleInfo.do

personRoleInfo.do

153 ms

notification.do

notification.do

182 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

79 ms

availableSurveyQuery.json

availableSurveyQuery.json

44 ms

iconfont.woff

iconfont.woff

32 ms

iconfont.woff

iconfont.woff

12 ms

Accessibility Review

szvisioncn.en.alibaba.com accessibility score

68

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

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

szvisioncn.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

szvisioncn.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 Szvisioncn.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 Szvisioncn.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

szvisioncn.en.alibaba.com

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