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

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

lightdow.en.alibaba.com

Shenzhen Zhenlongyuan Technology Co., Ltd. - Camera Equipment, Camera lens

Page Load Speed

3.3 sec in total

First Response

21 ms

Resources Loaded

2.7 sec

Page Rendered

540 ms

lightdow.en.alibaba.com screenshot

About Website

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

Shenzhen Zhenlongyuan Technology Co., Ltd., Experts in Manufacturing and Exporting Camera Equipment, Camera lens and 0 more Products.

Visit lightdow.en.alibaba.com

Key Findings

We analyzed Lightdow.en.alibaba.com page load time and found that the first response time was 21 ms and then it took 3.2 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

lightdow.en.alibaba.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value4,830 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.483

17/100

15%

TTI (Time to Interactive)

Value26.4 s

0/100

10%

Network Requests Diagram

lightdow.en.alibaba.com

21 ms

lightdow.en.alibaba.com

735 ms

46 ms

44 ms

header.css

81 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Lightdow.en.alibaba.com, 36% (32 requests) were made to S.alicdn.com and 15% (13 requests) were made to Sc01.alicdn.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.2 MB (64%)

Content Size

6.6 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lightdow.en.alibaba.com main page is 6.6 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 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 614.7 kB

  • Original 728.1 kB
  • After minification 724.1 kB
  • After compression 113.3 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 614.7 kB or 84% 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, Lightdow 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

-61%

Potential reduce by 3.3 MB

  • Original 5.4 MB
  • After minification 5.4 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 3.3 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 292.6 kB

  • Original 404.6 kB
  • After minification 353.7 kB
  • After compression 112.0 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. Lightdow.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 292.6 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (62%)

Requests Now

77

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lightdow 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

lightdow.en.alibaba.com

lightdow.en.alibaba.com

21 ms

lightdow.en.alibaba.com

lightdow.en.alibaba.com

735 ms

46 ms

44 ms

header.css

header.css

81 ms

header.js

header.js

90 ms

88 ms

web-index.css

web-index.css

89 ms

web-index.css

web-index.css

94 ms

web-index.css

web-index.css

135 ms

web-index.css

web-index.css

94 ms

web-index.css

web-index.css

92 ms

134 ms

64 ms

index.js

index.js

64 ms

64 ms

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HTB1dnEPanHuK1RkSndV760VwpXai.png

1644 ms

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HTB1gKkRahrvK1RjSsze761ObFXay.png

502 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

99 ms

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HTB1bm3HairxK1RkHFCc763QCVXaQ.png

367 ms

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TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

118 ms

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HTB1gukRahrvK1RjSsze761ObFXaf.png

553 ms

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HTB1MGEUaozrK1RjSspm763OdFXas.png

1012 ms

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HTB1F7Z0ajnuK1RkSmFP763uzFXaX.png

549 ms

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HTB1qc.PacvrK1Rjy0Fe763TmVXag.png

686 ms

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HTB18CoLae6sK1RjSsrb760bDXXau.png

816 ms

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HTB16T70ajnuK1RkSmFP763uzFXag.png

617 ms

HTB1InwVacnrK1RjSspk761uvXXaM.png

HTB1InwVacnrK1RjSspk761uvXXaM.png

1044 ms

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HTB12TcSacfrK1RkSnb4760HRFXaV.png

681 ms

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HTB1ix3QaiDxK1RjSsph762HrpXal.png

725 ms

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HTB1ioMPafvsK1RjSspd763ZepXac.png

1045 ms

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HTB15nsLaovrK1RjSspc762zSXXaQ.png

1084 ms

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HTB15eoQaoLrK1Rjy1zb763enFXaB.png

520 ms

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HTB1e7oPaizxK1RjSspj763S.pXah.png

521 ms

HTB1mdp8ajLuK1Rjy0Fh760pdFXad.png

HTB1mdp8ajLuK1Rjy0Fh760pdFXad.png

1012 ms

HTB1rEcWaoLrK1Rjy0Fj762YXFXaK.png

HTB1rEcWaoLrK1Rjy0Fj762YXFXaK.png

1704 ms

HTB1xmwUah2rK1RkSnhJ761kdpXa7.png

HTB1xmwUah2rK1RkSnhJ761kdpXa7.png

714 ms

HTB12jEKxrvpK1RjSZFq763XUVXaD.png

HTB12jEKxrvpK1RjSZFq763XUVXaD.png

546 ms

HTB1fRgTaizxK1RjSspj763S.pXao.png

HTB1fRgTaizxK1RjSspj763S.pXao.png

1551 ms

awsc.js

awsc.js

162 ms

72 ms

personTipsInfo.do

personTipsInfo.do

437 ms

36 ms

HTB1MygQaizxK1Rjy1zkq6yHrVXa4.jpg

HTB1MygQaizxK1Rjy1zkq6yHrVXa4.jpg

1184 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

108 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

35 ms

HTB1XLgNadfvK1RjSspo762fNpXaq.png

HTB1XLgNadfvK1RjSspo762fNpXaq.png

401 ms

roboto-regular.woff

roboto-regular.woff

102 ms

roboto-medium.woff

roboto-medium.woff

100 ms

roboto-light.woff

roboto-light.woff

102 ms

roboto-thin.woff

roboto-thin.woff

276 ms

roboto-bold.woff

roboto-bold.woff

165 ms

eg.js

eg.js

78 ms

sc.globalxman.appscene

sc.globalxman.appscene

36 ms

icon-font.woff

icon-font.woff

77 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

277 ms

footer.css

footer.css

17 ms

et_n.js

et_n.js

69 ms

um.js

um.js

70 ms

light0.5x.png

light0.5x.png

37 ms

pages_version.html

pages_version.html

249 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

150 ms

defer-common.js

defer-common.js

604 ms

i.alicdn.com

i.alicdn.com

566 ms

index.js

index.js

146 ms

index.js

index.js

156 ms

index.js

index.js

150 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

88 ms

7.gif

7.gif

89 ms

wu.json

wu.json

115 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

298 ms

baxiaCommon.js

baxiaCommon.js

54 ms

rp

rp

1705 ms

index.js

index.js

197 ms

index.web.css

index.web.css

5 ms

index.web.js

index.web.js

120 ms

um.json

um.json

81 ms

availableSurveyQuery.json

availableSurveyQuery.json

127 ms

index.css

index.css

33 ms

getUmid.do

getUmid.do

11 ms

index.js

index.js

13 ms

store-proxy.html

store-proxy.html

118 ms

countryCurrencyDataService

countryCurrencyDataService

275 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

95 ms

personRoleInfo.do

personRoleInfo.do

83 ms

notification.do

notification.do

124 ms

iconfont.woff

iconfont.woff

90 ms

iconfont.woff

iconfont.woff

14 ms

Accessibility Review

lightdow.en.alibaba.com accessibility score

69

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

lightdow.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

Displays images with incorrect aspect ratio

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

lightdow.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 Lightdow.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 Lightdow.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

lightdow.en.alibaba.com

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