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yb21.cn: 全国邮政编码查询系统

全国邮政编码查询系统, 全国邮编查询,提供全国各大城市, 乡镇的邮政编码查询,精确到乡镇, 全国一百多万个乡镇邮政编码, 数据全面并且精确

Page load speed analysis

  • 50/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    2.1 sec

  • Resources loaded

    9.5 sec

  • Page rendered

    890 ms

  • Total page load time

    12.5 sec

Welcome to yb21.cn homepage info - get ready to check Yb 21 best content for China right away, or after learning these important things about yb21.cn

We analyzed Yb21.cn page load time and found that the first response time was 2.1 sec and then it took 10.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Page optimization

  • HTML 30.3 kB
    Images 0 B
    Javascripts 10.7 kB
    CSS 3.0 kB

    In fact, the total size of Yb21.cn main page is 44.0 kB. This result falls within a big category (top 100 000) of medium weight web pages. Only a small number of websites need less resources to load. HTML takes 30.3 kB which makes up the majority of the site volume.

    • Original 30.3 kB
    • After minification 30.2 kB
    • After compression 4.6 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 25.7 kB or 85% of the original size.

    • Original 10.7 kB
    • After minification 10.7 kB
    • After compression 3.8 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 6.9 kB or 64% of the original size.

    • Original 3.0 kB
    • After minification 2.4 kB
    • After compression 883 B

    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. Yb21.cn needs all CSS files to be minified and compressed as it can save up to 2.1 kB or 70% of the original size.

Network requests diagram

  • yb21.cn
  • style.css
  • bus03.gif
  • bus06.gif
  • bus09.gif
  • bus07.gif
  • bus04.gif
  • z_stat.php
  • stat.htm
  • core.php
  • 9.gif
  • app.gif

Our browser made a total of 12 requests to load all elements on the main page. We found that 58% of them (7 requests) were addressed to the original Yb21.cn, 8% (1 request) were made to S11.cnzz.com and 8% (1 request) were made to Oz.cnzz.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source C.cnzz.com.

Additional info on yb21.cn

Requests

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yb 21. 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.

2

Javascripts

7

Images

1

CSS

10

All

Possible request optimization

2

Javascripts

1

Images

1

CSS

6

Optimized

4

All

Good result

IP address

This IP address is dedicated to Yb21.cn. This is the best domain hosting practice .

Normal result

IP Trace

yb21.cn

3.0.162.164

DNS records

Type Host Target/ip TTL Other
A

56f6bd9c.yb21.cn.cname.yundundns.com

183.131.214.135 60
CNAME

yb21.cn

56f6bd9c.yb21.cn.cname.yundundns.com 598

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 Yb21.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 Yb21.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

Yb21.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

Country of origin for 79.2% of all visits is China. It lies approximately 6020 miles away from the server location (United States) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up Yb21.cn page load time for the majority of users is moving the server to China or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Yb 21. 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:

yb21.cn

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