Tools & Wizards About Us
dns.com screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

dns.com

帝恩思-DNS.COM：DNS综合服务提供商-免费DNS解析-云解析-高防CDN-DNS劫持-SSL证书-网站劫持检测-宕机监控-云服务器ECS

Page Load Speed

35 sec in total

First Response

841 ms

Resources Loaded

25.1 sec

Page Rendered

9.1 sec

dns.com screenshot

About Website

Welcome to dns.com homepage info - get ready to check DNS best content for China right away, or after learning these important things about dns.com

帝恩思-（DNS.COM）全球领先的DNS综合服务提供商，平台涵盖DNS解析、高防DNS、DNS防劫持、网站劫持检测、SSL证书、高防CDN、云服务器ECS等多项业务，倾力打造新一代稳定、高效、安全的DNS综合服务提供商。

Visit dns.com

Key Findings

We analyzed Dns.com page load time and found that the first response time was 841 ms and then it took 34.1 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

dns.com performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value13.5 s

2/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value1.063

2/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

Network Requests Diagram

dns.com

841 ms

dns.com

1642 ms

www.dns.com

1920 ms

swiper.min.css

259 ms

core.css

524 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 83% of them (49 requests) were addressed to the original Dns.com, 3% (2 requests) were made to Hm.baidu.com and 3% (2 requests) were made to Taobao.com. The less responsive or slowest element that took the longest time to load (5.5 sec) relates to the external source Tajs.qq.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 438.6 kB (16%)

Content Size

2.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dns.com main page is 2.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 20.1 kB

  • Original 27.3 kB
  • After minification 24.7 kB
  • After compression 7.2 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 20.1 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 39.6 kB

  • Original 2.2 MB
  • After minification 2.2 MB

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. DNS images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 242.7 kB

  • Original 352.2 kB
  • After minification 339.9 kB
  • After compression 109.5 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 242.7 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 136.2 kB

  • Original 168.3 kB
  • After minification 155.4 kB
  • After compression 32.1 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. Dns.com needs all CSS files to be minified and compressed as it can save up to 136.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (19%)

Requests Now

53

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DNS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dns.com

dns.com

841 ms

dns.com

dns.com

1642 ms

www.dns.com

www.dns.com

1920 ms

swiper.min.css

swiper.min.css

259 ms

core.css

core.css

524 ms

list.css

list.css

998 ms

uaredirect.js

uaredirect.js

767 ms

index.css

index.css

625 ms

jquery-1.8.2.min.js

jquery-1.8.2.min.js

4150 ms

common.js

common.js

4149 ms

swiper-3.4.2.min.js

swiper-3.4.2.min.js

4782 ms

stats

stats

5454 ms

new_people.png

new_people.png

4210 ms

logo_170x70.png

logo_170x70.png

4172 ms

f4ec67e1089e43400064b3015c0c9dc6.jpg

f4ec67e1089e43400064b3015c0c9dc6.jpg

4728 ms

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edf93fc68c313215a685eae61808ec42.jpg

4681 ms

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0574d62b9b74150131c2a8f9c7ae018d.jpg

4743 ms

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8c31093076b818fa889c452f9da2b346.jpg

4679 ms

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d5aea06e02dbe024236b115ef88b2341.jpg

4420 ms

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1b5f6d3e303ff6afc5460497594b2691.jpg

4632 ms

sprite.png

sprite.png

4632 ms

icon1.png

icon1.png

4681 ms

icon2.png

icon2.png

4696 ms

icon3.png

icon3.png

4739 ms

solution_li1.png

solution_li1.png

4697 ms

solution_li2.png

solution_li2.png

4738 ms

solution_li3.png

solution_li3.png

4696 ms

solution_li4.png

solution_li4.png

4945 ms

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5fc20016ec254b5036ac8cc897a18035.jpg

4946 ms

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340b055e4072f63db8488031939ee437.jpg

4945 ms

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d48246e8831aa6d8bc174256b839e393.jpg

4950 ms

fa881277cc9a3008f167751b594d2599.jpg

fa881277cc9a3008f167751b594d2599.jpg

4894 ms

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fe34e0b859004126ff42706e72e81519.jpg

4949 ms

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cb1c3552d54b0d1b349253598e78080e.jpg

4950 ms

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ce0e2f10af86df4d9b2689fcbf87becf.jpg

4997 ms

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eabf7b578fbc4bd92eeb7ee4784c4f36.jpg

5073 ms

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2486f76d0c1524931258911d564bf595.jpg

5081 ms

bb3b9bdcc8e39c90c9aaddb9529d0df1.jpg

bb3b9bdcc8e39c90c9aaddb9529d0df1.jpg

5364 ms

be8653cd8fdc4b5c2fc10f581aa34679.jpg

be8653cd8fdc4b5c2fc10f581aa34679.jpg

5261 ms

9aa7248f4d5c785e0d06df77a34c7d52.jpg

9aa7248f4d5c785e0d06df77a34c7d52.jpg

5158 ms

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0d7a0a4662d2ba0cab8ea342c3fc4242.jpg

5159 ms

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c8fb7dd804c0c0320793d2cce686c163.jpg

5239 ms

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47e47cfd09504e84c693e132f11ad3ef.jpg

5260 ms

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3fc78fa04f675305d2ef6348c052499f.jpg

5420 ms

aea6bc1c1bbbdcf26c76a94514343957.jpg

aea6bc1c1bbbdcf26c76a94514343957.jpg

2838 ms

04c4c4ecf92302b7c75d070bb3524332.jpg

04c4c4ecf92302b7c75d070bb3524332.jpg

2894 ms

code.jpg

code.jpg

2252 ms

credible_cloud.png

credible_cloud.png

1577 ms

banner_c.png

banner_c.png

1813 ms

z_stat.php

z_stat.php

3670 ms

hm.js

hm.js

2015 ms

wechat_dns.jpg

wechat_dns.jpg

1379 ms

hm.gif

hm.gif

381 ms

stat.htm

stat.htm

1722 ms

core.php

core.php

3228 ms

9.gif

9.gif

1416 ms

www.taobao.com

www.taobao.com

1575 ms

www.taobao.com

www.taobao.com

3376 ms

world.taobao.com

world.taobao.com

1425 ms

Accessibility Review

dns.com accessibility score

70

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

dns.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

dns.com SEO score

92

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

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

dns.com

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