Tools & Wizards About Us
lug.org.cn screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

lug.org.cn

start [China GNU/Linux User Group]

Page Load Speed

3.8 sec in total

First Response

483 ms

Resources Loaded

3.2 sec

Page Rendered

137 ms

lug.org.cn screenshot

About Website

Click here to check amazing Lug content for Singapore. Otherwise, check out these important facts you probably never knew about lug.org.cn

China LUG 是一个聚合网站，帮助各地的 Linux 用户和开源爱好者们找到自己身边的开源社区、开源组织、LUG 和开源镜像，同时发布最新的开源软件消息、社区/Lug 新闻动态、开源活动通告、沙龙通告等。

Visit lug.org.cn

Key Findings

We analyzed Lug.org.cn page load time and found that the first response time was 483 ms and then it took 3.4 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

lug.org.cn performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value4.1 s

78/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

lug.org.cn

483 ms

doku.php

1095 ms

bootstrap.min.css

311 ms

font-awesome.min.css

251 ms

css.php

574 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that all of those requests were addressed to Lug.org.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Lug.org.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 139.0 kB (79%)

Content Size

176.9 kB

After Optimization

37.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Lug.org.cn main page is 176.9 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. CSS take 148.0 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 13.5 kB

  • Original 19.3 kB
  • After minification 17.9 kB
  • After compression 5.8 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 13.5 kB or 70% of the original size.

Image Optimization

-34%

Potential reduce by 3.3 kB

  • Original 9.7 kB
  • After minification 6.4 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, Lug needs image optimization as it can save up to 3.3 kB or 34% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-83%

Potential reduce by 122.2 kB

  • Original 148.0 kB
  • After minification 147.9 kB
  • After compression 25.8 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. Lug.org.cn needs all CSS files to be minified and compressed as it can save up to 122.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (54%)

Requests Now

13

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lug. 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

lug.org.cn

lug.org.cn

483 ms

doku.php

doku.php

1095 ms

bootstrap.min.css

bootstrap.min.css

311 ms

font-awesome.min.css

font-awesome.min.css

251 ms

css.php

css.php

574 ms

js.php

js.php

831 ms

logo.png

logo.png

68 ms

external-link.png

external-link.png

69 ms

cc-by-sa.png

cc-by-sa.png

70 ms

button-bootstrap3.png

button-bootstrap3.png

68 ms

button-php.gif

button-php.gif

126 ms

button-html5.png

button-html5.png

128 ms

button-css.png

button-css.png

130 ms

button-dw.png

button-dw.png

130 ms

indexer.php

indexer.php

268 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

378 ms

Accessibility Review

lug.org.cn accessibility score

89

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

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.

Best Practices

lug.org.cn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

lug.org.cn SEO score

85

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

Links do not have descriptive text

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

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lug.org.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Lug.org.cn 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

lug.org.cn

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