Tools & Wizards About Us
183864561.pc51.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 0

    SEO

183864561.pc51.com

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Page Load Speed

6.4 sec in total

First Response

1.1 sec

Resources Loaded

4.4 sec

Page Rendered

832 ms

183864561.pc51.com screenshot

About Website

Welcome to 183864561.pc51.com homepage info - get ready to check 183864561 Pc 51 best content for China right away, or after learning these important things about 183864561.pc51.com

耐思尼克是中国知名网络基础服务服务商,提供国际域名注册,网站建设,网页制作,海外域名注册,国外域名注册,COM域名,CN域名,CC域名,AC域名,TW域名,HK域名,虚拟主机,网站建设,域名空间等互联网应用服务；CN域名注册1元,国际域名注册88元/年。我们的域名采用自主开发的智能NDNS解析系统，功能强大而完善，买空间送域名。

Visit 183864561.pc51.com

Key Findings

We analyzed 183864561.pc51.com page load time and found that the first response time was 1.1 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

183864561.pc51.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value1,750 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

Network Requests Diagram

183864561.pc51.com

1148 ms

bannerStyle.css

426 ms

banddomain.gif

666 ms

pngfix.js

526 ms

jquery.js

1137 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 97% of them (62 requests) were addressed to the original 183864561.pc51.com, 2% (1 request) were made to Wpa.qq.com and 2% (1 request) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain 183864561.pc51.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 104.2 kB (39%)

Content Size

270.5 kB

After Optimization

166.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 183864561.pc51.com main page is 270.5 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 137.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 41.7 kB

  • Original 52.1 kB
  • After minification 51.5 kB
  • After compression 10.4 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 41.7 kB or 80% of the original size.

Image Optimization

-10%

Potential reduce by 13.2 kB

  • Original 137.4 kB
  • After minification 124.3 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. 183864561 Pc 51 images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 48.5 kB

  • Original 73.2 kB
  • After minification 73.0 kB
  • After compression 24.7 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 48.5 kB or 66% of the original size.

CSS Optimization

-11%

Potential reduce by 870 B

  • Original 7.8 kB
  • After minification 7.8 kB
  • After compression 6.9 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. 183864561.pc51.com needs all CSS files to be minified and compressed as it can save up to 870 B or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (47%)

Requests Now

60

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 183864561 Pc 51. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

183864561.pc51.com

183864561.pc51.com

1148 ms

bannerStyle.css

bannerStyle.css

426 ms

banddomain.gif

banddomain.gif

666 ms

pngfix.js

pngfix.js

526 ms

jquery.js

jquery.js

1137 ms

jcarousellite.js

jcarousellite.js

545 ms

pa

pa

566 ms

2061265c1edf733ebf86b23ab666aaf3.png

2061265c1edf733ebf86b23ab666aaf3.png

236 ms

hot.gif

hot.gif

234 ms

loading.gif

loading.gif

269 ms

fps.gif

fps.gif

429 ms

home5.png

home5.png

430 ms

home52.png

home52.png

437 ms

orghot.gif

orghot.gif

438 ms

icp.gif

icp.gif

1760 ms

ccpy.jpg

ccpy.jpg

633 ms

cnnic.gif

cnnic.gif

638 ms

icann.gif

icann.gif

651 ms

mobi_logo.gif

mobi_logo.gif

649 ms

verisign.gif

verisign.gif

1045 ms

home-ad.jpg

home-ad.jpg

1038 ms

dot.gif

dot.gif

1049 ms

song.gif

song.gif

1050 ms

home_email_02.jpg

home_email_02.jpg

1046 ms

home_email_04.jpg

home_email_04.jpg

1049 ms

home_email_03.jpg

home_email_03.jpg

1047 ms

home_email_05.jpg

home_email_05.jpg

1139 ms

s5.jpg

s5.jpg

1172 ms

s2.jpg

s2.jpg

1176 ms

s3.jpg

s3.jpg

1212 ms

s6.jpg

s6.jpg

1229 ms

bg-top.gif

bg-top.gif

1177 ms

bg-topmenu-rep.gif

bg-topmenu-rep.gif

1157 ms

bg-topmenu-l.gif

bg-topmenu-l.gif

1239 ms

bg-topmenu-r.gif

bg-topmenu-r.gif

1321 ms

main-menu.gif

main-menu.gif

1338 ms

main-menu-bull.gif

main-menu-bull.gif

1358 ms

main-top-c.gif

main-top-c.gif

1360 ms

main-top-t.gif

main-top-t.gif

1460 ms

inputdomain.gif

inputdomain.gif

1523 ms

bts.gif

bts.gif

1545 ms

home5.jpg

home5.jpg

919 ms

main-top-b.gif

main-top-b.gif

883 ms

bg-navigation.gif

bg-navigation.gif

995 ms

bg-outer.gif

bg-outer.gif

1049 ms

sbox.gif

sbox.gif

1067 ms

sbox-t2.gif

sbox-t2.gif

1096 ms

s1.jpg

s1.jpg

1095 ms

s2.jpg

s2.jpg

1157 ms

box2.gif

box2.gif

1227 ms

domaininput.gif

domaininput.gif

1254 ms

inputbg.gif

inputbg.gif

1274 ms

domain_search.gif

domain_search.gif

1307 ms

183864561.pc51.com

183864561.pc51.com

1141 ms

box-t2.gif

box-t2.gif

1170 ms

buy.gif

buy.gif

1225 ms

home_vhost.jpg

home_vhost.jpg

1235 ms

bts5.gif

bts5.gif

1253 ms

home_vhost_back.jpg

home_vhost_back.jpg

1288 ms

home_email_01.jpg

home_email_01.jpg

1288 ms

bts4.gif

bts4.gif

1324 ms

bts3.gif

bts3.gif

1306 ms

bg-footer.gif

bg-footer.gif

1321 ms

button_old_81.gif

button_old_81.gif

865 ms

Accessibility Review

183864561.pc51.com accessibility score

87

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

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

183864561.pc51.com best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

183864561.pc51.com SEO score

0

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 183864561.pc51.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 183864561.pc51.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

183864561.pc51.com

Open Graph description is not detected on the main page of 183864561 Pc 51. 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: