Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

dwhd.org

Linux–不是那么难 | 学习Linux–那么难是不?

Page Load Speed

8.6 sec in total

First Response

519 ms

Resources Loaded

7.7 sec

Page Rendered

315 ms

dwhd.org screenshot

About Website

Welcome to dwhd.org homepage info - get ready to check Dwhd best content for China right away, or after learning these important things about dwhd.org

Legion是一个个人的linux学习记录型博客,本人不望博客多出名,只期待自己能把自己在linux路上的点点滴滴都做个记录

Visit dwhd.org

Key Findings

We analyzed Dwhd.org page load time and found that the first response time was 519 ms and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dwhd.org performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.241

52/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

Network Requests Diagram

dwhd.org

519 ms

www.dwhd.org

2815 ms

font-awesome.min.css

840 ms

style.css

760 ms

be.css

1432 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 96% of them (46 requests) were addressed to the original Dwhd.org, 2% (1 request) were made to and 2% (1 request) were made to Secure.gravatar.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Dwhd.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 185.7 kB (27%)

Content Size

692.3 kB

After Optimization

506.6 kB

In fact, the total size of Dwhd.org main page is 692.3 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. 45% of websites need less resources to load. Images take 232.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 103.0 kB

  • Original 127.0 kB
  • After minification 123.2 kB
  • After compression 24.0 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 103.0 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 5.4 kB

  • Original 232.9 kB
  • After minification 227.5 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. Dwhd images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 25.3 kB

  • Original 147.5 kB
  • After minification 146.8 kB
  • After compression 122.2 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 25.3 kB or 17% of the original size.

CSS Optimization

-28%

Potential reduce by 51.9 kB

  • Original 184.8 kB
  • After minification 184.4 kB
  • After compression 132.9 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. Dwhd.org needs all CSS files to be minified and compressed as it can save up to 51.9 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (63%)

Requests Now

43

After Optimization

16

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dwhd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dwhd.org accessibility score

75

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

High

Links do not have a discernible 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.

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

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

dwhd.org best practices score

83

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dwhd.org SEO score

91

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

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 Dwhd.org 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 Dwhd.org 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 Dwhd. 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: