Tools & Wizards About Us
static.oschina.net screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

static.oschina.net

Page Load Speed

53.9 sec in total

First Response

2.2 sec

Resources Loaded

51.1 sec

Page Rendered

540 ms

static.oschina.net screenshot

About Website

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

开源中国 www.oschina.net 是目前中国最大的开源技术社区。我们传播开源的理念，推广开源项目，为 IT 开发者提供了一个发现、使用、并交流开源技术的平台。目前开源中国社区已收录超过两万款开源软件。

Visit static.oschina.net

Key Findings

We analyzed Static.oschina.net page load time and found that the first response time was 2.2 sec and then it took 51.6 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 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

static.oschina.net performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value1,540 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value44.8 s

0/100

10%

Network Requests Diagram

static.oschina.net

2245 ms

channel.css

2903 ms

jquery.fancybox-1.3.4.css

2905 ms

nature.css

1549 ms

object.css

1820 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that all of those requests were addressed to Static.oschina.net and no external sources were called. The less responsive or slowest element that took the longest time to load (19.8 sec) belongs to the original domain Static.oschina.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 666.1 kB (69%)

Content Size

959.3 kB

After Optimization

293.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Static.oschina.net main page is 959.3 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. 30% of websites need less resources to load. CSS take 383.5 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 152.4 kB

  • Original 179.0 kB
  • After minification 125.7 kB
  • After compression 26.5 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 53.2 kB, which is 30% 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 152.4 kB or 85% of the original size.

Image Optimization

-18%

Potential reduce by 39.9 kB

  • Original 215.9 kB
  • After minification 176.0 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. Obviously, Static Oschina needs image optimization as it can save up to 39.9 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 127.4 kB

  • Original 180.9 kB
  • After minification 156.8 kB
  • After compression 53.5 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 127.4 kB or 70% of the original size.

CSS Optimization

-90%

Potential reduce by 346.4 kB

  • Original 383.5 kB
  • After minification 354.2 kB
  • After compression 37.2 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. Static.oschina.net needs all CSS files to be minified and compressed as it can save up to 346.4 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (34%)

Requests Now

65

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Static Oschina. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

static.oschina.net

static.oschina.net

2245 ms

channel.css

channel.css

2903 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

2905 ms

nature.css

nature.css

1549 ms

object.css

object.css

1820 ms

people.css

people.css

1426 ms

place.css

place.css

1921 ms

Sysmbols.css

Sysmbols.css

1933 ms

twemoji.css

twemoji.css

2947 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

9364 ms

jquery.form.js

jquery.form.js

5276 ms

jquery.fancybox-fixed.js

jquery.fancybox-fixed.js

2381 ms

tip-yellowsimple.css

tip-yellowsimple.css

2841 ms

jquery.poshytip.min.js

jquery.poshytip.min.js

3304 ms

oschina.js

oschina.js

3346 ms

utils.js

utils.js

6916 ms

channel.js

channel.js

3394 ms

oschina2013.css

oschina2013.css

3763 ms

font-awesome.css

font-awesome.css

4374 ms

down3.gif

down3.gif

464 ms

logo.svg

logo.svg

1957 ms

newindex-01.svg

newindex-01.svg

464 ms

newindex-02.svg

newindex-02.svg

469 ms

newindex-03.svg

newindex-03.svg

554 ms

icons2.gif

icons2.gif

467 ms

index_banner_one_qAQWm.jpg

index_banner_one_qAQWm.jpg

4200 ms

index_banner_two_xHPVa.jpg

index_banner_two_xHPVa.jpg

4651 ms

thread_2.gif

thread_2.gif

1798 ms

thread_1.gif

thread_1.gif

929 ms

index_banner_three_nWxTV.jpg

index_banner_three_nWxTV.jpg

13617 ms

index_banner_four_aBYIZ.jpg

index_banner_four_aBYIZ.jpg

3785 ms

index_banner_five_flMjB.jpg

index_banner_five_flMjB.jpg

3761 ms

174025_50.jpg

174025_50.jpg

3721 ms

img.gif

img.gif

6619 ms

2306455_50.jpg

2306455_50.jpg

4232 ms

2257615_50.jpg

2257615_50.jpg

4246 ms

208591_50.png

208591_50.png

6399 ms

2491310_50.jpg

2491310_50.jpg

4693 ms

1164691_50.jpg

1164691_50.jpg

4710 ms

567557_50.jpg

567557_50.jpg

6454 ms

1756518_50.jpg

1756518_50.jpg

5208 ms

1047640_50.jpg

1047640_50.jpg

5208 ms

29145950_glho.png

29145950_glho.png

10162 ms

team.png

team.png

6961 ms

git.png

git.png

8161 ms

sonar.png

sonar.png

6914 ms

paas.png

paas.png

7650 ms

ostools.gif

ostools.gif

7375 ms

runjs_logo.gif

runjs_logo.gif

7422 ms

maven.gif

maven.gif

7835 ms

logo.png

logo.png

7886 ms

111924_i4x6_179699.jpg

111924_i4x6_179699.jpg

9621 ms

160442_8Fw6_179699.png

160442_8Fw6_179699.png

9751 ms

job_com_ico.png

job_com_ico.png

8250 ms

job_pos_ico.png

job_pos_ico.png

8524 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

19628 ms

msg.png

msg.png

8657 ms

people.png

people.png

19624 ms

tweetsSwitcher1.gif

tweetsSwitcher1.gif

9635 ms

tweetsSwitcher2.gif

tweetsSwitcher2.gif

9670 ms

a3.gif

a3.gif

10349 ms

appIcon.gif

appIcon.gif

8837 ms

android.gif

android.gif

8741 ms

iphone.gif

iphone.gif

7380 ms

wp7.gif

wp7.gif

7411 ms

tweetsSwitcher4.gif

tweetsSwitcher4.gif

7783 ms

tweetsSwitcher3.gif

tweetsSwitcher3.gif

7438 ms

gotop.gif

gotop.gif

8709 ms

fontawesome-webfont.ttf

fontawesome-webfont.ttf

19766 ms

Accessibility Review

static.oschina.net accessibility score

59

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

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

static.oschina.net best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

static.oschina.net 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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Static.oschina.net can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Chinese. Our system also found out that Static.oschina.net 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

static.oschina.net

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