Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

chinadsl.net

宽带技术网 - Powered by Discuz!

Page Load Speed

6.4 sec in total

First Response

1.2 sec

Resources Loaded

1.8 sec

Page Rendered

3.4 sec

chinadsl.net screenshot

About Website

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

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Key Findings

We analyzed Chinadsl.net page load time and found that the first response time was 1.2 sec and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster. This domain responded with an error, which can significantly jeopardize Chinadsl.net rating and web reputation

Performance Metrics

chinadsl.net performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

chinadsl.net

1229 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Chinadsl.net and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Chinadsl.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 172.0 kB (61%)

Content Size

283.4 kB

After Optimization

111.4 kB

In fact, the total size of Chinadsl.net main page is 283.4 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Javascripts take 141.1 kB which makes up the majority of the site volume.

HTML Optimization

-42%

Potential reduce by 480 B

  • Original 1.1 kB
  • After minification 1.1 kB
  • After compression 668 B

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 480 B or 42% of the original size.

Image Optimization

-14%

Potential reduce by 8.4 kB

  • Original 58.4 kB
  • After minification 50.0 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, Chinadsl needs image optimization as it can save up to 8.4 kB or 14% 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 98.2 kB

  • Original 141.1 kB
  • After minification 131.4 kB
  • After compression 42.9 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 98.2 kB or 70% of the original size.

CSS Optimization

-78%

Potential reduce by 64.9 kB

  • Original 82.7 kB
  • After minification 80.5 kB
  • After compression 17.8 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. Chinadsl.net needs all CSS files to be minified and compressed as it can save up to 64.9 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

chinadsl.net accessibility score

71

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

High

<object> elements do not have alternate text

Best Practices

chinadsl.net best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

chinadsl.net SEO score

54

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

High

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chinadsl.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 Chinadsl.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 Chinadsl. 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: