Tools & Wizards About Us

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

cangfengzhe.com

安全点:专注网络信息安全在线培训

Page Load Speed

5.8 sec in total

First Response

716 ms

Resources Loaded

4.8 sec

Page Rendered

271 ms

About Website

Visit cangfengzhe.com now to see the best up-to-date Cangfengzhe content and also check out these interesting facts you probably never knew about cangfengzhe.com

安全点专注在线网络信息安全培训，包括网络安全教育，信息安全教育等内容，包括安全课堂，kali，渗透测试，渗透教程，web渗透教程，python教程，网络攻防，android安全，漏洞与源码分析，机器学习，安全数据科学，内网安全，Devops，密码学，安全运维等。

Visit cangfengzhe.com

Key Findings

We analyzed Cangfengzhe.com page load time and found that the first response time was 716 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

cangfengzhe.com performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

cangfengzhe.com

716 ms

base.css

264 ms

m.css

422 ms

jquery-1.8.3.min.js

948 ms

sodar2.js

109 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 38% of them (14 requests) were addressed to the original Cangfengzhe.com, 54% (20 requests) were made to Aqdian.com and 5% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Aqdian.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 25.4 kB (10%)

Content Size

248.4 kB

After Optimization

222.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cangfengzhe.com main page is 248.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 183.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.3 kB

  • Original 22.9 kB
  • After minification 21.4 kB
  • After compression 5.6 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 17.3 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 7.3 kB

  • Original 183.5 kB
  • After minification 176.1 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. Cangfengzhe images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 85 B

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 34.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-9%

Potential reduce by 679 B

  • Original 7.4 kB
  • After minification 7.4 kB
  • After compression 6.7 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. Cangfengzhe.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

35

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cangfengzhe. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

cangfengzhe.com accessibility score

53

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.

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

cangfengzhe.com 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

High

Browser errors were logged to the console

SEO Factors

cangfengzhe.com SEO score

92

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

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 uses legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cangfengzhe.com 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 Cangfengzhe.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

Open Graph description is not detected on the main page of Cangfengzhe. 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: