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

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

vrcooler.en.alibaba.com

Company Overview - Changzhou Vrcoolertech Refrigeration Co., Ltd.

Page Load Speed

4.7 sec in total

First Response

566 ms

Resources Loaded

3.9 sec

Page Rendered

247 ms

vrcooler.en.alibaba.com screenshot

About Website

Welcome to vrcooler.en.alibaba.com homepage info - get ready to check Vr Co Oler En Alibaba best content for China right away, or after learning these important things about vrcooler.en.alibaba.com

Changzhou Vrcoolertech Refrigeration Co., Ltd. Products:Heat Exchanger, Condenser, Evaporator, Charge Air Cooler, Dry Cooler

Visit vrcooler.en.alibaba.com

Key Findings

We analyzed Vrcooler.en.alibaba.com page load time and found that the first response time was 566 ms and then it took 4.2 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

vrcooler.en.alibaba.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value10,890 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.259

48/100

15%

TTI (Time to Interactive)

Value24.6 s

0/100

10%

Network Requests Diagram

vrcooler.en.alibaba.com

566 ms

vrcooler.en.alibaba.com

270 ms

128 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

172 ms

index.js

406 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Vrcooler.en.alibaba.com, 29% (14 requests) were made to Sc02.alicdn.com and 27% (13 requests) were made to S.alicdn.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 725.4 kB (42%)

Content Size

1.7 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Vrcooler.en.alibaba.com main page is 1.7 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. 40% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 297.2 kB

  • Original 374.8 kB
  • After minification 374.1 kB
  • After compression 77.6 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 297.2 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 7 B

  • Original 6.0 kB
  • After minification 6.0 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. Vr Co Oler En Alibaba images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 428.1 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 931.8 kB

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 428.1 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (39%)

Requests Now

46

After Optimization

28

  • AJAX
  • Images
  • JavaScript

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vr Co Oler 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 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

vrcooler.en.alibaba.com

vrcooler.en.alibaba.com

566 ms

vrcooler.en.alibaba.com

vrcooler.en.alibaba.com

270 ms

128 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

172 ms

index.js

index.js

406 ms

index.js

index.js

189 ms

renderHeader.js

renderHeader.js

206 ms

He98aa0e9583a405eaa25f5304582a32eJ.jpg

He98aa0e9583a405eaa25f5304582a32eJ.jpg

890 ms

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766 ms

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3055 ms

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1176 ms

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H402b6a00451c4f948b317a547a5eb6b0c.jpg

911 ms

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TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

168 ms

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H5eda60b557bb481b885d3be1bc1b5fd1d.jpg

798 ms

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1365 ms

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456 ms

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Hacad544155154bd5bd44abb2d4c5715fu.jpg

1820 ms

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H025c1b44a5e546ee818aeba842ac334bV.jpg

980 ms

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Hc586f3c88d8843098faeac1efa76e39eh.jpg

521 ms

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Hc219c5f9c8104e85af63beb3c2254e65j.jpg

575 ms

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H9e652b9266724cdba0f313173f8fad91y.jpg

658 ms

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573 ms

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606 ms

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1036 ms

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1101 ms

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1515 ms

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1065 ms

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1078 ms

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1530 ms

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2032 ms

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1580 ms

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856 ms

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956 ms

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842 ms

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880 ms

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912 ms

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1301 ms

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Hd0cafef0ea274ec28e6d053f1ecebf31r.jpg

1377 ms

awsc.js

awsc.js

84 ms

38 ms

7.gif

7.gif

220 ms

et_f.js

et_f.js

18 ms

um.js

um.js

208 ms

wu.json

wu.json

38 ms

um.json

um.json

56 ms

getUmid.do

getUmid.do

65 ms

eg.js

eg.js

4 ms

index.js

index.js

3 ms

Accessibility Review

vrcooler.en.alibaba.com accessibility score

75

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.

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

vrcooler.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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

vrcooler.en.alibaba.com SEO score

79

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

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 Vrcooler.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 Vrcooler.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

vrcooler.en.alibaba.com

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