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17.com.cn: 电路板故障检测仪,集成电路测试仪,电能质量分析仪,谐波分析仪,绝缘电阻测试仪,兆欧表,高阻计,谐波分析仪-17.com.cn 测试仪器网首页

北京金三航科技发展有限公司是法国CA电能质量分析仪和绝缘电阻测试仪的代理商,专业销售法国CA:电能质量分析仪,谐波分析仪,谐波分析仪,绝缘电阻测试仪,兆欧表,高阻计.英国ABI集成电路测试仪和电路板故障检测仪的专业代理商,专业代理英国ABI的集成电路测试仪,电路板故障检测仪,北京金三航产品注册商标:shtek;专业生产:集成电路测试仪,电路板故障检测仪,热风吸锡维修系统.同时我们代理,美国hunt...

Page load speed analysis

  • 47/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    3.1 sec

  • Resources loaded

    18.4 sec

  • Page rendered

    262 ms

  • Total page load time

    21.8 sec

Visit 17.com.cn now to see the best up-to-date 17 content and also check out these interesting facts you probably never knew about 17.com.cn

We analyzed 17.com.cn page load time and found that the first response time was 3.1 sec and then it took 18.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Page optimization

  • HTML 47.5 kB
    Images 179.5 kB
    Javascripts 257.6 kB
    CSS 31.4 kB

    In fact, the total size of 17.com.cn main page is 516.0 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. Javascripts take 257.6 kB which makes up the majority of the site volume.

    • Original 47.5 kB
    • After minification 43.5 kB
    • After compression 8.3 kB

    HTML optimization

    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 39.2 kB or 83% of the original size.

    • Original 179.5 kB
    • After optimization 174.9 kB

    Image optimization

    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. 17 images are well optimized though.

    • Original 257.6 kB
    • After minification 253.7 kB
    • After compression 86.9 kB

    JavaScript optimization

    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 170.7 kB or 66% of the original size.

    • Original 31.4 kB
    • After minification 30.6 kB
    • After compression 7.0 kB

    CSS optimization

    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. 17.com.cn needs all CSS files to be minified and compressed as it can save up to 24.4 kB or 78% of the original size.

Network requests diagram

  • 17.com.cn
  • STYLE.CSS
  • public.js
  • date.js
  • abigg.jpg
  • 201062814585926008.jpg
  • 20126411342097408.jpg
  • 20106281545275097.jpg
  • 201313015514576601.jpg
  • 2011101210342392340.jpg
  • 2011101211173286800.jpg
  • 2011101211225025340.jpg
  • 2011101211311829452.jpg
  • cagg.jpg
  • 201062817532339055.jpg
  • 201062817535297222.gif
  • 201062817552932937.gif
  • 201142316404837623.jpg
  • 8335.gif
  • at256banner.gif
  • logo.jpg
  • 201092515481370024.gif
  • bj1.jpg
  • jj.jpg
  • jian_tou.gif
  • x.png
  • dt5000c.gif
  • BM8500.gif
  • 20087251113495393.jpg
  • 2008521162496269.jpg
  • 201062815394892170.jpg
  • 20106281517574573.jpg
  • 20125289444669759.jpg
  • 2011101210342392340.jpg
  • 2011101211173286800.jpg
  • 20106281533037720.jpg
  • 201062814585926008.jpg
  • 2011101211311829452.jpg
  • 20106281545275097.jpg
  • 20126411385753442.jpg
  • ss.gif
  • AT256.gif
  • 201472916313589627.jpg
  • 201472916294489510.jpg
  • 20106291052274472.jpg
  • 201472916255533579.jpg
  • 200952711131742723.jpg
  • 201472916195595462.jpg
  • 201472916281113265.jpg
  • biaoshi.gif
  • html5embed.action
  • main_3.css
  • lib_6.js
  • main_12.js
  • storage.html
  • v.swf
  • compvlog
  • youku

Our browser made a total of 58 requests to load all elements on the main page. We found that 86% of them (50 requests) were addressed to the original 17.com.cn, 3% (2 requests) were made to Tudou.com and 3% (2 requests) were made to Js.tudouui.com. The less responsive or slowest element that took the longest time to load (11 sec) belongs to the original domain 17.com.cn.

Additional info on 17.com.cn

Requests

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 17. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

4

Javascripts

47

Images

2

CSS

3

AJAX

56

All

Possible request optimization

1

Javascripts

42

Images

2

CSS

3

AJAX

8

Optimized

48

All

Normal result

IP address

This IP address is dedicated to 17.com.cn. This is the best domain hosting practice .

Normal result

IP Trace

17.com.cn

43.226.49.22

DNS records

Type Host Target/ip TTL Other
A

17.com.cn

42.202.146.69 281
NS

17.com.cn

f1g1ns2.dnspod.net 279
NS

17.com.cn

f1g1ns1.dnspod.net 279
SOA

17.com.cn

300 Mname: f1g1ns1.dnspod.net
Rname: freednsadmin.dnspod.com
Serial: 1398417595
Refresh: 3600
Retry: 180
Expire: 1209600
Minimum-ttl: 180

Language and encoding

Poor result

Language

ZH zh language flag

Detected

N/A  language flag

Claimed

Encoding

GB2312

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 17.com.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 17.com.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.

HTTPS certificate

SSL Certificate

17.com.cn has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of 17.com.cn is located in China, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of 17. 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:

17.com.cn

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