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

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

vacfurnace.en.alibaba.com

Shanghai Gehang Vacuum Technology Co., Ltd. - Vacuum furnace, Vacuum heat Treatment furnace

Page Load Speed

3.7 sec in total

First Response

377 ms

Resources Loaded

3 sec

Page Rendered

276 ms

vacfurnace.en.alibaba.com screenshot

About Website

Visit vacfurnace.en.alibaba.com now to see the best up-to-date Vac Furnace En Alibaba content for China and also check out these interesting facts you probably never knew about vacfurnace.en.alibaba.com

Shanghai Gehang Vacuum Technology Co., Ltd., Experts in Manufacturing and Exporting Vacuum furnace, Vacuum heat Treatment furnace and 0 more Products.

Visit vacfurnace.en.alibaba.com

Key Findings

We analyzed Vacfurnace.en.alibaba.com page load time and found that the first response time was 377 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

vacfurnace.en.alibaba.com performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value5,230 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

vacfurnace.en.alibaba.com

377 ms

vacfurnace.en.alibaba.com

308 ms

119 ms

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

58 ms

index.js

92 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Vacfurnace.en.alibaba.com, 33% (15 requests) were made to Sc01.alicdn.com and 27% (12 requests) were made to S.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 875.8 kB (46%)

Content Size

1.9 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Vacfurnace.en.alibaba.com main page is 1.9 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. 35% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 406.5 kB

  • Original 492.4 kB
  • After minification 491.7 kB
  • After compression 86.0 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 406.5 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 4.8 kB
  • After minification 4.8 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. Vac Furnace En Alibaba images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 469.3 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 928.5 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 469.3 kB or 34% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

43

After Optimization

26

  • AJAX
  • Images
  • JavaScript

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vac Furnace 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

vacfurnace.en.alibaba.com

vacfurnace.en.alibaba.com

377 ms

vacfurnace.en.alibaba.com

vacfurnace.en.alibaba.com

308 ms

119 ms

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

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

58 ms

index.js

index.js

92 ms

index.js

index.js

65 ms

renderHeader.js

renderHeader.js

104 ms

H3fc132bb7ee546ba8f566eaf88d3aadfe.jpg

H3fc132bb7ee546ba8f566eaf88d3aadfe.jpg

1035 ms

H6535fb0131454fd68730992d2267f705C.jpg

H6535fb0131454fd68730992d2267f705C.jpg

1232 ms

H4900964184dd4cdb99c7fe36159018829.jpg

H4900964184dd4cdb99c7fe36159018829.jpg

635 ms

HTB1E0DuUwDqK1RjSZSyq6yxEVXaz.jpg

HTB1E0DuUwDqK1RjSZSyq6yxEVXaz.jpg

649 ms

HTB1QifrQ3TqK1RjSZPhq6xfOFXay.jpg

HTB1QifrQ3TqK1RjSZPhq6xfOFXay.jpg

877 ms

HTB1DZvCQ3HqK1RjSZFPq6AwapXae.jpg

HTB1DZvCQ3HqK1RjSZFPq6AwapXae.jpg

692 ms

HTB1qfTHUxTpK1RjSZR0q6zEwXXaW.jpg

HTB1qfTHUxTpK1RjSZR0q6zEwXXaW.jpg

592 ms

He074076877e34ec6b13fe9a35d55ed4c9.jpg

He074076877e34ec6b13fe9a35d55ed4c9.jpg

700 ms

HTB1BMzBQZbpK1RjSZFyq6x_qFXat.jpg

HTB1BMzBQZbpK1RjSZFyq6x_qFXat.jpg

1296 ms

HTB1m3UyXpT7gK0jSZFpq6yTkpXai.jpg

HTB1m3UyXpT7gK0jSZFpq6yTkpXai.jpg

2339 ms

HTB1rPz1Q4jaK1RjSZKzq6xVwXXa1.jpg

HTB1rPz1Q4jaK1RjSZKzq6xVwXXa1.jpg

740 ms

HTB1E4vqQ9rqK1RjSZK9q6xyypXaD.jpg

HTB1E4vqQ9rqK1RjSZK9q6xyypXaD.jpg

706 ms

HTB1WiDyQYvpK1RjSZPiq6zmwXXa9.jpg

HTB1WiDyQYvpK1RjSZPiq6zmwXXa9.jpg

674 ms

HTB1zwTrQ6DpK1RjSZFrq6y78VXaT.jpg

HTB1zwTrQ6DpK1RjSZFrq6y78VXaT.jpg

714 ms

HTB15zDxQY2pK1RjSZFsq6yNlXXab.jpg

HTB15zDxQY2pK1RjSZFsq6yNlXXab.jpg

772 ms

HTB1mr_FQ7PoK1RjSZKbq6x1IXXa9.jpg

HTB1mr_FQ7PoK1RjSZKbq6x1IXXa9.jpg

1111 ms

HTB1dbDAQVYqK1RjSZLeq6zXppXa1.jpg

HTB1dbDAQVYqK1RjSZLeq6zXppXa1.jpg

1115 ms

HTB1MaYuQ9zqK1RjSZFLq6An2XXaJ.jpg

HTB1MaYuQ9zqK1RjSZFLq6An2XXaJ.jpg

1180 ms

HTB1mSbCQ6TpK1RjSZKPq6y3UpXaJ.jpg

HTB1mSbCQ6TpK1RjSZKPq6y3UpXaJ.jpg

1225 ms

HTB1HL_CQ9zqK1RjSZFpq6ykSXXaG.jpg

HTB1HL_CQ9zqK1RjSZFpq6ykSXXaG.jpg

1176 ms

HTB126PDQYrpK1RjSZTEq6AWAVXam.jpg

HTB126PDQYrpK1RjSZTEq6AWAVXam.jpg

1376 ms

HTB1n6_zQ4TpK1RjSZFMq6zG_VXap.jpg

HTB1n6_zQ4TpK1RjSZFMq6zG_VXap.jpg

1766 ms

HTB1WNvqQ9rqK1RjSZK9q6xyypXaN.jpg

HTB1WNvqQ9rqK1RjSZK9q6xyypXaN.jpg

1502 ms

HTB1J0M0XEY1gK0jSZFCq6AwqXXaj.jpg

HTB1J0M0XEY1gK0jSZFCq6AwqXXaj.jpg

1541 ms

HTB1hLnDQ7voK1RjSZFNq6AxMVXaa.jpg

HTB1hLnDQ7voK1RjSZFNq6AxMVXaa.jpg

896 ms

HTB1NLbKQ4jaK1RjSZFAq6zdLFXam.jpg

HTB1NLbKQ4jaK1RjSZFAq6zdLFXam.jpg

730 ms

Hc5e0d10eb99343d98539ddb3587b164am.jpg

Hc5e0d10eb99343d98539ddb3587b164am.jpg

889 ms

H230f99ab0d32474daa909d202891d87dr.jpg

H230f99ab0d32474daa909d202891d87dr.jpg

971 ms

awsc.js

awsc.js

43 ms

6 ms

7.gif

7.gif

126 ms

et_n.js

et_n.js

11 ms

um.js

um.js

117 ms

wu.json

wu.json

101 ms

um.json

um.json

55 ms

getUmid.do

getUmid.do

52 ms

eg.js

eg.js

3 ms

index.js

index.js

5 ms

Accessibility Review

vacfurnace.en.alibaba.com accessibility score

66

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

vacfurnace.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

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

vacfurnace.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 Vacfurnace.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 Vacfurnace.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

vacfurnace.en.alibaba.com

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