Tools & Wizards About Us
dns021.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% 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

13.5 sec in total

First Response

2.7 sec

Resources Loaded

10.6 sec

Page Rendered

165 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 2.7 sec and then it took 10.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

dns021.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

dns021.com

2720 ms

css.css

681 ms

css.css

680 ms

logo.gif

1841 ms

200822455833315.gif

456 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 72% of them (48 requests) were addressed to the original Dns021.com, 9% (6 requests) were made to Wpa.qq.com and 9% (6 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Dns021.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 153.1 kB (45%)

Content Size

341.9 kB

After Optimization

188.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dns021.com main page is 341.9 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. 25% of websites need less resources to load. Javascripts take 265.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 60.7 kB

  • Original 69.2 kB
  • After minification 52.3 kB
  • After compression 8.5 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 24% 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 60.7 kB or 88% of the original size.

Image Optimization

-1%

Potential reduce by 40 B

  • Original 4.5 kB
  • After minification 4.5 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. Dns 021 images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 90.2 kB

  • Original 265.2 kB
  • After minification 263.8 kB
  • After compression 175.0 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 90.2 kB or 34% of the original size.

CSS Optimization

-71%

Potential reduce by 2.1 kB

  • Original 3.0 kB
  • After minification 2.4 kB
  • After compression 876 B

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 2.1 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

55

After Optimization

38

  • Images
  • JavaScript
  • CSS

The browser has sent 55 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 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

dns021.com

dns021.com

2720 ms

css.css

css.css

681 ms

css.css

css.css

680 ms

logo.gif

logo.gif

1841 ms

200822455833315.gif

200822455833315.gif

456 ms

011-.jpg

011-.jpg

451 ms

yu.js

yu.js

2897 ms

tb.js

tb.js

904 ms

getcode.asp

getcode.asp

246 ms

img-005.gif

img-005.gif

451 ms

img-006.gif

img-006.gif

470 ms

alipayLogin.gif

alipayLogin.gif

895 ms

qqlogin.gif

qqlogin.gif

693 ms

index001.gif

index001.gif

893 ms

010-.jpg

010-.jpg

1101 ms

com20091016i.gif

com20091016i.gif

1997 ms

agentbanner.gif

agentbanner.gif

2899 ms

img-019.gif

img-019.gif

1139 ms

img-020.gif

img-020.gif

1347 ms

neiye-06_pic26.gif

neiye-06_pic26.gif

1807 ms

neiye-06_pic27.gif

neiye-06_pic27.gif

1586 ms

neiye-06_pic28.gif

neiye-06_pic28.gif

1581 ms

img-021.gif

img-021.gif

1589 ms

neiye-06_pic32.gif

neiye-06_pic32.gif

1575 ms

img-018.gif

img-018.gif

1785 ms

anniu-02.gif

anniu-02.gif

1809 ms

anniu-03.gif

anniu-03.gif

1811 ms

qq.js

qq.js

926 ms

1330287.js

1330287.js

538 ms

neiye-04_pic4.gif

neiye-04_pic4.gif

1104 ms

neiye-04_pic5.gif

neiye-04_pic5.gif

1146 ms

neiye-04_pic7.gif

neiye-04_pic7.gif

1147 ms

neiye-04_pic6.gif

neiye-04_pic6.gif

1154 ms

ba.gif

ba.gif

1515 ms

shwjwl110.gif

shwjwl110.gif

1372 ms

zhizhao.gif

zhizhao.gif

1373 ms

zx_footer_logo.png

zx_footer_logo.png

1381 ms

totop.gif

totop.gif

1615 ms

slide_trigger_c.gif

slide_trigger_c.gif

230 ms

slide_trigger.gif

slide_trigger.gif

229 ms

left_bg001.gif

left_bg001.gif

212 ms

img-015.gif

img-015.gif

236 ms

neiye-04_back_kehu.gif

neiye-04_back_kehu.gif

236 ms

img-016.gif

img-016.gif

240 ms

img-017.gif

img-017.gif

621 ms

anniu-01.gif

anniu-01.gif

453 ms

anniu-05.gif

anniu-05.gif

455 ms

anniu-04.gif

anniu-04.gif

461 ms

di_bg.GIF

di_bg.GIF

458 ms

pa

pa

904 ms

pa

pa

901 ms

pa

pa

903 ms

pa

pa

903 ms

pa

pa

905 ms

pa

pa

908 ms

h.js

h.js

880 ms

h.js

h.js

950 ms

21.gif

21.gif

1549 ms

b.js

b.js

1786 ms

hm.gif

hm.gif

300 ms

button_old_41.gif

button_old_41.gif

924 ms

button_old_41.gif

button_old_41.gif

946 ms

button_old_41.gif

button_old_41.gif

946 ms

button_old_41.gif

button_old_41.gif

952 ms

button_old_41.gif

button_old_41.gif

947 ms

button_old_41.gif

button_old_41.gif

973 ms

affim.js

affim.js

2620 ms

Accessibility Review

dns021.com accessibility score

52

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.

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: