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

Report Summary

  • 30

    Performance

    Renders faster than
    50% 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

crownunited.en.alibaba.com

Shanghai Compressor Service Co., Ltd. - Air compressor, Screw type air compressor

Page Load Speed

3.5 sec in total

First Response

265 ms

Resources Loaded

2.9 sec

Page Rendered

362 ms

crownunited.en.alibaba.com screenshot

About Website

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

Shanghai Compressor Service Co., Ltd., Experts in Manufacturing and Exporting Air compressor, Screw type air compressor and 0 more Products.

Visit crownunited.en.alibaba.com

Key Findings

We analyzed Crownunited.en.alibaba.com page load time and found that the first response time was 265 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

crownunited.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

83/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value6,240 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.502

16/100

15%

TTI (Time to Interactive)

Value28.0 s

0/100

10%

Network Requests Diagram

crownunited.en.alibaba.com

265 ms

crownunited.en.alibaba.com

691 ms

55 ms

52 ms

header.css

52 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Crownunited.en.alibaba.com, 69% (78 requests) were made to S.alicdn.com and 6% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.1 MB (59%)

Content Size

3.6 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Crownunited.en.alibaba.com main page is 3.6 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 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 659.6 kB

  • Original 777.2 kB
  • After minification 773.3 kB
  • After compression 117.6 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 659.6 kB or 85% of the original size.

Image Optimization

-15%

Potential reduce by 8.9 kB

  • Original 59.8 kB
  • After minification 50.9 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, Crownunited En Alibaba needs image optimization as it can save up to 8.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-48%

Potential reduce by 1.2 MB

  • Original 2.4 MB
  • After minification 2.4 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 1.2 MB or 48% of the original size.

CSS Optimization

-89%

Potential reduce by 295.4 kB

  • Original 333.5 kB
  • After minification 281.8 kB
  • After compression 38.1 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. Crownunited.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 295.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 62 (61%)

Requests Now

102

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crownunited 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

crownunited.en.alibaba.com

crownunited.en.alibaba.com

265 ms

crownunited.en.alibaba.com

crownunited.en.alibaba.com

691 ms

55 ms

52 ms

header.css

header.css

52 ms

header.js

header.js

125 ms

127 ms

web-index.css

web-index.css

119 ms

web-index.css

web-index.css

123 ms

web-index.css

web-index.css

121 ms

web-index.css

web-index.css

130 ms

web-index.css

web-index.css

190 ms

105 ms

96 ms

index.js

index.js

97 ms

98 ms

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453 ms

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29 ms

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27 ms

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1161 ms

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204 ms

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547 ms

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203 ms

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203 ms

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453 ms

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392 ms

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280 ms

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392 ms

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489 ms

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451 ms

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541 ms

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536 ms

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603 ms

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716 ms

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621 ms

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673 ms

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753 ms

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926 ms

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834 ms

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786 ms

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823 ms

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788 ms

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601 ms

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904 ms

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872 ms

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914 ms

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909 ms

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1082 ms

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1614 ms

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1018 ms

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1158 ms

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1582 ms

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1301 ms

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1297 ms

personTipsInfo.do

personTipsInfo.do

137 ms

awsc.js

awsc.js

202 ms

107 ms

93 ms

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1489 ms

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427 ms

roboto-regular.woff

roboto-regular.woff

1053 ms

eg.js

eg.js

91 ms

roboto-medium.woff

roboto-medium.woff

999 ms

roboto-light.woff

roboto-light.woff

999 ms

roboto-thin.woff

roboto-thin.woff

999 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

249 ms

sc.globalxman.appscene

sc.globalxman.appscene

134 ms

et_f.js

et_f.js

15 ms

um.js

um.js

113 ms

footer.css

footer.css

943 ms

roboto-bold.woff

roboto-bold.woff

853 ms

7.gif

7.gif

74 ms

index.js

index.js

74 ms

index.js

index.js

74 ms

icon-font.woff

icon-font.woff

817 ms

wu.json

wu.json

45 ms

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1290 ms

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1154 ms

baxiaCommon.js

baxiaCommon.js

31 ms

rp

rp

1150 ms

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1141 ms

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1508 ms

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1171 ms

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1203 ms

um.json

um.json

54 ms

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1550 ms

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1138 ms

getUmid.do

getUmid.do

18 ms

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1201 ms

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1110 ms

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1203 ms

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1092 ms

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1351 ms

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1055 ms

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1298 ms

light0.5x.png

light0.5x.png

610 ms

pages_version.html

pages_version.html

48 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

21 ms

defer-common.js

defer-common.js

73 ms

i.alicdn.com

i.alicdn.com

324 ms

index.js

index.js

583 ms

index.web.css

index.web.css

600 ms

index.web.js

index.web.js

608 ms

store-proxy.html

store-proxy.html

183 ms

countryCurrencyDataService

countryCurrencyDataService

173 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

126 ms

personRoleInfo.do

personRoleInfo.do

123 ms

notification.do

notification.do

111 ms

index.js

index.js

20 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

98 ms

iconfont.woff

iconfont.woff

89 ms

iconfont.woff

iconfont.woff

88 ms

availableSurveyQuery.json

availableSurveyQuery.json

99 ms

Accessibility Review

crownunited.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

crownunited.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

crownunited.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 Crownunited.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 Crownunited.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

crownunited.en.alibaba.com

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