Tools & Wizards About Us
zhuanzhi.net screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

zhuanzhi.net

专职网_专业机械教程/二维图纸/3D模型免费下载网站

Page Load Speed

83 sec in total

First Response

3.8 sec

Resources Loaded

77.9 sec

Page Rendered

1.3 sec

zhuanzhi.net screenshot

About Website

Click here to check amazing Zhuanzhi content for China. Otherwise, check out these important facts you probably never knew about zhuanzhi.net

专职网是提供Creo教程,ProE教程,CAD教程,还有UG(NX),Inventor,Solidworks,SolidEdge,Catia,CAXA,INCA,CANape等免费教程下载的机械网。

Visit zhuanzhi.net

Key Findings

We analyzed Zhuanzhi.net page load time and found that the first response time was 3.8 sec and then it took 79.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 58 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zhuanzhi.net performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

zhuanzhi.net

3822 ms

www.zhuanzhi.net

11635 ms

jquery-1.4.2.js

10339 ms

skin_homered.css

20120 ms

g.js

646 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 88% of them (72 requests) were addressed to the original Zhuanzhi.net, 7% (6 requests) were made to 386600.com and 1% (1 request) were made to S20.cnzz.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Zhuanzhi.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 212.0 kB (17%)

Content Size

1.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zhuanzhi.net main page is 1.2 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. Only 10% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 72.1 kB

  • Original 86.5 kB
  • After minification 72.1 kB
  • After compression 14.4 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. This page needs HTML code to be minified as it can gain 14.4 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 72.1 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 64.1 kB

  • Original 1.0 MB
  • After minification 964.7 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. Zhuanzhi images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 42.2 kB

  • Original 79.1 kB
  • After minification 77.7 kB
  • After compression 36.8 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 42.2 kB or 53% of the original size.

CSS Optimization

-82%

Potential reduce by 33.6 kB

  • Original 40.8 kB
  • After minification 35.4 kB
  • After compression 7.2 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. Zhuanzhi.net needs all CSS files to be minified and compressed as it can save up to 33.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (32%)

Requests Now

22

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zhuanzhi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zhuanzhi.net

zhuanzhi.net

3822 ms

www.zhuanzhi.net

www.zhuanzhi.net

11635 ms

jquery-1.4.2.js

jquery-1.4.2.js

10339 ms

skin_homered.css

skin_homered.css

20120 ms

g.js

g.js

646 ms

dedeajax2.js

dedeajax2.js

1004 ms

j.js

j.js

1742 ms

xixi.css

xixi.css

1298 ms

lrtk.js

lrtk.js

4706 ms

toolbar.js

toolbar.js

992 ms

stat.php

stat.php

2301 ms

gongsiweixin386600.jpg

gongsiweixin386600.jpg

19985 ms

b.jpg

b.jpg

2450 ms

386600.png

386600.png

7487 ms

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2835 ms

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20023 ms

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20014 ms

h.js

h.js

19902 ms

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19534 ms

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19972 ms

stat.htm

stat.htm

187 ms

core.php

core.php

603 ms

title_bg.gif

title_bg.gif

474 ms

min.gif

min.gif

3829 ms

close.gif

close.gif

978 ms

Accessibility Review

zhuanzhi.net accessibility score

45

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

zhuanzhi.net best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zhuanzhi.net SEO score

69

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zhuanzhi.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Zhuanzhi.net main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

zhuanzhi.net

Open Graph description is not detected on the main page of Zhuanzhi. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: