Tools & Wizards About Us
dns021.com screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

dns021.com

双云网络-(原金咏网络)，双云主机、上海云主机、上海VPS、上海虚拟主机，上海论坛主机，虚拟主机，ASP虚拟主机，PHP虚拟主机，香港空间，上海虚拟空间，美国虚拟空间，SQL数据库空间，金咏域名注册，中国域名注册，域名主机,虚拟主机，域名注册

Page Load Speed

78.2 sec in total

First Response

18.6 sec

Resources Loaded

59.4 sec

Page Rendered

213 ms

dns021.com screenshot

About Website

Visit dns021.com now to see the best up-to-date Dns 021 content and also check out these interesting facts you probably never knew about dns021.com

上海金咏拥有十年虚拟主机、域名注册的运营经验，提供虚拟主机,域名注册,Linux主机,专用虚拟主机,VPS主机,云主机,香港VPS,免费主机转入,服务器租用,服务器托管等，我们以高性价比、一流服务和强大的管理功能赢得数十万客户

Visit dns021.com

Key Findings

We analyzed Dns021.com page load time and found that the first response time was 18.6 sec and then it took 59.7 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. This domain responded with an error, which can significantly jeopardize Dns021.com rating and web reputation

Performance Metrics

dns021.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value310 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

dns021.com

18584 ms

css.css

5264 ms

css.css

9639 ms

logo.gif

1778 ms

200822455833315.gif

932 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 58% of them (46 requests) were addressed to the original Dns021.com, 23% (18 requests) were made to Qiao.baidu.com and 8% (6 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Dns021.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 129.1 kB (62%)

Content Size

208.0 kB

After Optimization

78.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dns021.com main page is 208.0 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. HTML takes 75.1 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 65.2 kB

  • Original 75.1 kB
  • After minification 58.2 kB
  • After compression 9.9 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. This page needs HTML code to be minified as it can gain 16.9 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 65.2 kB or 87% of the original size.

Image Optimization

-21%

Potential reduce by 15.0 kB

  • Original 71.9 kB
  • After minification 56.9 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. Obviously, Dns 021 needs image optimization as it can save up to 15.0 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 17.5 kB

  • Original 23.2 kB
  • After minification 22.5 kB
  • After compression 5.6 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 17.5 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 31.4 kB

  • Original 37.8 kB
  • After minification 27.9 kB
  • After compression 6.4 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. Dns021.com needs all CSS files to be minified and compressed as it can save up to 31.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 49 (64%)

Requests Now

77

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dns 021. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dns021.com

dns021.com

18584 ms

css.css

css.css

5264 ms

css.css

css.css

9639 ms

logo.gif

logo.gif

1778 ms

200822455833315.gif

200822455833315.gif

932 ms

011-.jpg

011-.jpg

932 ms

getcode.asp

getcode.asp

2238 ms

img-005.gif

img-005.gif

481 ms

img-006.gif

img-006.gif

3187 ms

alipayLogin.gif

alipayLogin.gif

3859 ms

qqlogin.gif

qqlogin.gif

1974 ms

yu.js

yu.js

19636 ms

tb.js

tb.js

9555 ms

index001.gif

index001.gif

946 ms

010-.jpg

010-.jpg

6961 ms

com20091016i.gif

com20091016i.gif

18763 ms

agentbanner.gif

agentbanner.gif

20205 ms

img-019.gif

img-019.gif

4583 ms

img-020.gif

img-020.gif

5048 ms

neiye-06_pic26.gif

neiye-06_pic26.gif

10460 ms

neiye-06_pic27.gif

neiye-06_pic27.gif

20205 ms

neiye-06_pic28.gif

neiye-06_pic28.gif

10243 ms

img-021.gif

img-021.gif

10596 ms

neiye-06_pic32.gif

neiye-06_pic32.gif

20204 ms

img-018.gif

img-018.gif

14305 ms

anniu-02.gif

anniu-02.gif

15020 ms

anniu-03.gif

anniu-03.gif

15372 ms

neiye-04_pic4.gif

neiye-04_pic4.gif

11654 ms

neiye-04_pic5.gif

neiye-04_pic5.gif

10025 ms

neiye-04_pic7.gif

neiye-04_pic7.gif

12988 ms

neiye-04_pic6.gif

neiye-04_pic6.gif

13999 ms

ba.gif

ba.gif

19917 ms

qq.js

qq.js

18828 ms

1330287.js

1330287.js

1018 ms

shwjwl110.gif

shwjwl110.gif

14874 ms

zhizhao.gif

zhizhao.gif

14702 ms

zx_footer_logo.png

zx_footer_logo.png

15429 ms

totop.gif

totop.gif

19563 ms

left_bg001.gif

left_bg001.gif

9320 ms

img-015.gif

img-015.gif

12953 ms

neiye-04_back_kehu.gif

neiye-04_back_kehu.gif

12060 ms

img-016.gif

img-016.gif

19972 ms

img-017.gif

img-017.gif

17930 ms

anniu-01.gif

anniu-01.gif

12621 ms

anniu-05.gif

anniu-05.gif

13009 ms

anniu-04.gif

anniu-04.gif

13302 ms

di_bg.GIF

di_bg.GIF

13397 ms

icon_0.gif

icon_0.gif

934 ms

h.js

h.js

1802 ms

21.gif

21.gif

1896 ms

b.js

b.js

1780 ms

hm.gif

hm.gif

348 ms

bsl.js

bsl.js

2829 ms

Enter.php

Enter.php

2793 ms

main_icon_invite_mess_api.js

main_icon_invite_mess_api.js

7772 ms

main.css

main.css

722 ms

fix.css

fix.css

4170 ms

version.js

version.js

1877 ms

02.jpg

02.jpg

1982 ms

m-webim-lite.css

m-webim-lite.css

2870 ms

m-webim-lite.js

m-webim-lite.js

3652 ms

Refresh.php

Refresh.php

375 ms

12.jpg

12.jpg

2126 ms

12.png

12.png

866 ms

icon.png

icon.png

900 ms

icon_close.png

icon_close.png

2739 ms

stat.gif

stat.gif

1367 ms

02.png

02.png

7783 ms

mess-text.png

mess-text.png

7133 ms

02_normal.png

02_normal.png

2550 ms

mess.gif

mess.gif

2977 ms

02_send_normal.png

02_send_normal.png

7097 ms

btn.png

btn.png

5767 ms

button_old_41.gif

button_old_41.gif

144 ms

button_old_41.gif

button_old_41.gif

143 ms

button_old_41.gif

button_old_41.gif

141 ms

button_old_41.gif

button_old_41.gif

69 ms

button_old_41.gif

button_old_41.gif

70 ms

button_old_41.gif

button_old_41.gif

70 ms

Refresh.php

Refresh.php

375 ms

Accessibility Review

dns021.com accessibility score

57

Accessibility Issues

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

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

dns021.com 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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

dns021.com SEO score

69

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

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 Dns021.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 Dns021.com 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

dns021.com

Open Graph description is not detected on the main page of Dns 021. 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: