Report Summary

  • 0

    Performance

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

51dh.net

www.51dh.net-官网首页

Page Load Speed

41.3 sec in total

First Response

11.6 sec

Resources Loaded

29.5 sec

Page Rendered

222 ms

51dh.net screenshot

About Website

Visit 51dh.net now to see the best up-to-date 51 Dh content and also check out these interesting facts you probably never knew about 51dh.net

51足球导航网-06-21年记录-历史百度权重3

Visit 51dh.net

Key Findings

We analyzed 51dh.net page load time and found that the first response time was 11.6 sec and then it took 29.7 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.

Performance Metrics

51dh.net performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

51dh.net

11580 ms

hao123.css

4324 ms

base.js

1451 ms

config.js

1446 ms

main.js

7034 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 22% of them (14 requests) were addressed to the original 51dh.net, 13% (8 requests) were made to Dspcm.brand.sogou.com and 10% (6 requests) were made to Inte.sogou.com. The less responsive or slowest element that took the longest time to load (11.6 sec) belongs to the original domain 51dh.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.9 kB (33%)

Content Size

249.3 kB

After Optimization

167.4 kB

In fact, the total size of 51dh.net main page is 249.3 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. 20% of websites need less resources to load. Images take 104.3 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 45.9 kB

  • Original 62.8 kB
  • After minification 61.7 kB
  • After compression 16.9 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 45.9 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 474 B

  • Original 104.3 kB
  • After minification 103.9 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. 51 Dh images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 32.0 kB

  • Original 77.2 kB
  • After minification 74.9 kB
  • After compression 45.1 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 32.0 kB or 42% of the original size.

CSS Optimization

-69%

Potential reduce by 3.5 kB

  • Original 5.0 kB
  • After minification 4.9 kB
  • After compression 1.6 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. 51dh.net needs all CSS files to be minified and compressed as it can save up to 3.5 kB or 69% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (48%)

Requests Now

56

After Optimization

29

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Dh. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

51dh.net accessibility score

66

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

<frame> or <iframe> elements do not have a title

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

51dh.net best practices score

67

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

High

Page has valid source maps

SEO Factors

51dh.net SEO score

58

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51dh.net can be misinterpreted by Google and other search engines. Our service has detected that English 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 51dh.net main page’s claimed encoding is gb2312. 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

Open Graph description is not detected on the main page of 51 Dh. 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: