Tools & Wizards About Us
voipchina.cn screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

voipchina.cn

网络通信网——网络通信专家 原IP通信网

Page Load Speed

43.8 sec in total

First Response

10.6 sec

Resources Loaded

32.8 sec

Page Rendered

440 ms

voipchina.cn screenshot

About Website

Click here to check amazing Voipchina content. Otherwise, check out these important facts you probably never knew about voipchina.cn

网络通信（www.voipchina.cn）是通信行业具有重大影响力的网络通信资讯门户网站，垂直IP融合通信媒体平台。自2004年创立以来，始终致力于提供下一代网络通信资讯信息与商务服务。2008年荣获计世资讯通信类“中国行业网百强”称号；2010年荣获中国新媒体创新盛典年度“中国最具行业影响力网络通信行业门户网站”。

Visit voipchina.cn

Key Findings

We analyzed Voipchina.cn page load time and found that the first response time was 10.6 sec and then it took 33.2 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. Unfortunately, there were 9 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

voipchina.cn performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

voipchina.cn

10590 ms

style.css

2587 ms

T.M.css

4697 ms

inc.js

1855 ms

default.js

1885 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 91% of them (77 requests) were addressed to the original Voipchina.cn, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to S24.cnzz.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Voipchina.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 179.4 kB (64%)

Content Size

278.7 kB

After Optimization

99.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Voipchina.cn main page is 278.7 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. HTML takes 143.5 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 124.4 kB

  • Original 143.5 kB
  • After minification 127.0 kB
  • After compression 19.1 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 16.5 kB, which is 12% 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 124.4 kB or 87% of the original size.

Image Optimization

-36%

Potential reduce by 29.4 kB

  • Original 81.4 kB
  • After minification 52.0 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, Voipchina needs image optimization as it can save up to 29.4 kB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-46%

Potential reduce by 23.3 kB

  • Original 50.4 kB
  • After minification 46.9 kB
  • After compression 27.1 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 23.3 kB or 46% of the original size.

CSS Optimization

-68%

Potential reduce by 2.3 kB

  • Original 3.4 kB
  • After minification 2.8 kB
  • After compression 1.1 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. Voipchina.cn needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (27%)

Requests Now

73

After Optimization

53

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voipchina. 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

voipchina.cn

voipchina.cn

10590 ms

style.css

style.css

2587 ms

T.M.css

T.M.css

4697 ms

inc.js

inc.js

1855 ms

default.js

default.js

1885 ms

swfobject.js

swfobject.js

2009 ms

rollpic.js

rollpic.js

4624 ms

rollpic.css

rollpic.css

1728 ms

vote.php

vote.php

421 ms

logo.gif

logo.gif

1349 ms

indexA_04.gif

indexA_04.gif

492 ms

1_20150526090550_hkfby.png

1_20150526090550_hkfby.png

4185 ms

1_20151103111117_4znnc.gif

1_20151103111117_4znnc.gif

13926 ms

1_20110101200108_kgcph.gif

1_20110101200108_kgcph.gif

4432 ms

1_20110613100644_72afo.gif

1_20110613100644_72afo.gif

9460 ms

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1_20131014131008_ju6rn.gif

13462 ms

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1_20131018131056_g4bdc.gif

3238 ms

1_20131018141022_hntmk.gif

1_20131018141022_hntmk.gif

6619 ms

1_20131018131055_jzdqa.gif

1_20131018131055_jzdqa.gif

8064 ms

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1_20131018131004_gn3ut.gif

7936 ms

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1_20160311140341_ptmgy_png.gif

15428 ms

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1_20160311090307_ncpvd_png.gif

19912 ms

1_20160225100252_j1imq_png.gif

1_20160225100252_j1imq_png.gif

13291 ms

1_20160301160345_vnuou.gif

1_20160301160345_vnuou.gif

19913 ms

px.jpg

px.jpg

4979 ms

zed-3.jpg

zed-3.jpg

2946 ms

microsoft.gif

microsoft.gif

1493 ms

ghlogo.gif

ghlogo.gif

1498 ms

15.jpg

15.jpg

5729 ms

hk.jpg

hk.jpg

10892 ms

ibm.jpg

ibm.jpg

4067 ms

12.jpg

12.jpg

7285 ms

4.gif

4.gif

4130 ms

yl.gif

yl.gif

4502 ms

tdl.jpg

tdl.jpg

7115 ms

1.gif

1.gif

4933 ms

xm.gif

xm.gif

5381 ms

3.gif

3.gif

5382 ms

seegle.gif

seegle.gif

5813 ms

hengsheng.gif

hengsheng.gif

11217 ms

cl.gif

cl.gif

7861 ms

hw.gif

hw.gif

6252 ms

360.gif

360.gif

6691 ms

ibm.gif

ibm.gif

7141 ms

jd.gif

jd.gif

7877 ms

or.gif

or.gif

7547 ms

ld.gif

ld.gif

8742 ms

sc.gif

sc.gif

7959 ms

cate_nav_bg.gif

cate_nav_bg.gif

13709 ms

cate_nav_bg1.gif

cate_nav_bg1.gif

17450 ms

cate_nav_bg_3.gif

cate_nav_bg_3.gif

14984 ms

cate_nav_bg2.gif

cate_nav_bg2.gif

14770 ms

yph.gif

yph.gif

8333 ms

head_bg.gif

head_bg.gif

17389 ms

hd_a1.gif

hd_a1.gif

15395 ms

topnews_a1.gif

topnews_a1.gif

15124 ms

topnews_a2.gif

topnews_a2.gif

15151 ms

title_ico4.gif

title_ico4.gif

15551 ms

topnews_a3.gif

topnews_a3.gif

15593 ms

1.gif

1.gif

15980 ms

2.gif

2.gif

16033 ms

title_icon3.gif

title_icon3.gif

16419 ms

1_20101223161237_szzqa.jpg

1_20101223161237_szzqa.jpg

17754 ms

votevs.gif

votevs.gif

17906 ms

1_20101223161228_bcv5w.jpg

1_20101223161228_bcv5w.jpg

20108 ms

blog_mu.gif

blog_mu.gif

17655 ms

1_20160316130310_xtsvl.jpg

1_20160316130310_xtsvl.jpg

20094 ms

1_20160129180141_mnrwm.jpg

1_20160129180141_mnrwm.jpg

20093 ms

1_20150721170753_05xzh.gif

1_20150721170753_05xzh.gif

18799 ms

1_20160329150305_3knue.gif

1_20160329150305_3knue.gif

20093 ms

1_20150714140751_d9mad.gif

1_20150714140751_d9mad.gif

20093 ms

1_20151231091226_jnjt6.jpg

1_20151231091226_jnjt6.jpg

19567 ms

1_20150709150723_e9x0w.gif

1_20150709150723_e9x0w.gif

19675 ms

stat.php

stat.php

2338 ms

1_20151125131116_upxnt.gif

1_20151125131116_upxnt.gif

17805 ms

stat.htm

stat.htm

709 ms

core.php

core.php

1024 ms

1_20150604140628_vtriw.jpg

1_20150604140628_vtriw.jpg

17455 ms

9.gif

9.gif

4122 ms

pic2.gif

pic2.gif

560 ms

ga.js

ga.js

28 ms

__utm.gif

__utm.gif

25 ms

1_20160316130305_b209o.gif

1_20160316130305_b209o.gif

14823 ms

jiangxian.gif

jiangxian.gif

15055 ms

app.gif

app.gif

715 ms

Accessibility Review

voipchina.cn accessibility score

51

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

Best Practices

voipchina.cn 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

voipchina.cn SEO score

62

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

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 Voipchina.cn 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 Voipchina.cn 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

voipchina.cn

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