Tools & Wizards About Us
cjsdn.net screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

cjsdn.net

Java开发网 - 首页

Page Load Speed

3.8 sec in total

First Response

708 ms

Resources Loaded

3 sec

Page Rendered

163 ms

cjsdn.net screenshot

About Website

Welcome to cjsdn.net homepage info - get ready to check Cjsdn best content for China right away, or after learning these important things about cjsdn.net

Java编程,Java论坛,Cjsdn,Java论坛程序,在线图书馆,Spring Struts Webwork框架深入,XMLHTTP AJAX开发,Java Web开发,Java企业应用,Java设计模式,Java开源框架,Java应用服务器,Rich Client讨论,JavaScript编程,敏捷软件开发XP TDD,软件配置管理,软件测试,项目管理UML,数据库,精通Hibernate

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Key Findings

We analyzed Cjsdn.net page load time and found that the first response time was 708 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

cjsdn.net performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

cjsdn.net

708 ms

www.cjsdn.net

2004 ms

ALL_BG.gif

459 ms

title.gif

669 ms

feed-rss.gif

433 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Cjsdn.net and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Cjsdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 54.3 kB (87%)

Content Size

62.5 kB

After Optimization

8.2 kB

  • HTML

In fact, the total size of Cjsdn.net main page is 62.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. HTML takes 62.5 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 54.3 kB

  • Original 62.5 kB
  • After minification 52.2 kB
  • After compression 8.2 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 10.4 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 54.3 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (63%)

Requests Now

16

After Optimization

6

  • Images

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cjsdn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

cjsdn.net

cjsdn.net

708 ms

www.cjsdn.net

www.cjsdn.net

2004 ms

ALL_BG.gif

ALL_BG.gif

459 ms

title.gif

title.gif

669 ms

feed-rss.gif

feed-rss.gif

433 ms

feed-rdf.gif

feed-rdf.gif

434 ms

posts.gif

posts.gif

512 ms

members.gif

members.gif

496 ms

online_up.gif

online_up.gif

699 ms

aboard.gif

aboard.gif

674 ms

lastpost.gif

lastpost.gif

669 ms

poll.gif

poll.gif

216 ms

xmisp.gif

xmisp.gif

458 ms

title.gif

title.gif

257 ms

board.gif

board.gif

267 ms

board_n.gif

board_n.gif

289 ms

up.gif

up.gif

419 ms

wj.gif

wj.gif

428 ms

Accessibility Review

cjsdn.net accessibility score

56

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

Best Practices

cjsdn.net 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

SEO Factors

cjsdn.net SEO score

67

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

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cjsdn.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 Cjsdn.net main page’s claimed encoding is gbk. 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

cjsdn.net

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