21-SUN.COM 工程机械商贸网-工程机械网-工程机械-挖掘机-装载机


21-sun.com website information.

21-sun.com domain name is registered by .COM top-level domain registry. See the other sites registred in .COM domain zone.

Following name servers are specified for 21-sun.com domain:

  • dns2.hichina.com
  • dns1.hichina.com

According to Alexa traffic rank the highest website 21-sun.com position was 5222 (in the world). The lowest Alexa rank position was 984982. Current position of 21-sun.com in Alexa rank database is below 1 million.

Website 21-sun.com Desktop speed measurement score (0/100) shows that the page desktop performance can be improved.

21-sun.com Mobile usability score (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of 21-sun.com (20/100) is better than the results of 4.48% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Jun-16-2021 N/AN/A
Jun-15-2021 N/AN/A
Jun-14-2021 N/AN/A
Jun-13-2021 N/AN/A
Jun-12-2021 N/AN/A
Jun-11-2021 N/AN/A
Jun-10-2021 N/AN/A

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21-sun.com Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.



21-sun.com whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Domain Name: 21-SUN.COM
Registry Domain ID: 26647987_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2021-04-12T01:12:13Z
Creation Date: 2000-05-09T06:33:16Z
Registry Expiry Date: 2022-05-09T06:33:16Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: DNS1.HICHINA.COM
Name Server: DNS2.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-24T22:41:35Z

21-sun.com server information

Servers Location

IP Address
123.129.249.133
Country
China
Region
Shandong
City
Jinan

21-sun.com desktop page speed rank

Last tested: 2019-12-02


Desktop Speed Bad
0/100

21-sun.com Desktop Speed Test Quick Summary


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priority - 80 Leverage browser caching

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priority - 2 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

http://www.21-sun.com/21sun_2019/css/select.css

21-sun.com Desktop Resources

Total Resources243
Number of Hosts5
Static Resources241
JavaScript Resources1
CSS Resources2

21-sun.com Desktop Resource Breakdown

21-sun.com mobile page speed rank

Last tested: 2019-12-04


Mobile Speed Bad
20/100

21-sun.com Mobile Speed Test Quick Summary


priority - 217 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 2.1MiB (94% reduction).

Compressing and resizing http://resource.21-sun.com/internet/used2013/image…20160516180126_235.jpg could save 661.9KiB (99% reduction).
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priority - 56 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

http://s4.cnzz.com/stat.php?id=1254937551&web_id=1254937551
http://c.cnzz.com/core.php?web_id=1254937551&t=z
http://m.21-sun.com/resources/modules/seajs/sea.js
http://m.21-sun.com/resources/phone/seajs.config.js
http://m.21-sun.com/scripts/jquery-1.7.min.js

Optimize CSS Delivery of the following:

http://m.21-sun.com/resources/grid/grid12.css
http://m.21-sun.com/resources/icon/icon.css
http://m.21-sun.com/resources/phone/css/style.css
http://m.21-sun.com/resources/phone/css/responsive.css
http://m.21-sun.com/resources/phone/css/Pad.css
http://m.21-sun.com/resources/phone/css/Mobile.css
http://m.21-sun.com/resources/modules/tab.css
http://m.21-sun.com/resources/modules/slide.css

priority - 33 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://m.21-sun.com/resources/grid/grid12.css (expiration not specified)
http://m.21-sun.com/resources/icon/icon.css (expiration not specified)
http://m.21-sun.com/resources/icon/ordinary.woff (expiration not specified)
http://m.21-sun.com/resources/modules/base.js (expiration not specified)
http://m.21-sun.com/resources/modules/count.js (expiration not specified)
http://m.21-sun.com/resources/modules/jquery/1/jquery.js (expiration not specified)
http://m.21-sun.com/resources/modules/seajs/sea.js (expiration not specified)
http://m.21-sun.com/resources/modules/slide.css (expiration not specified)
http://m.21-sun.com/resources/modules/slide.js (expiration not specified)
http://m.21-sun.com/resources/modules/tab.css (expiration not specified)
http://m.21-sun.com/resources/modules/tab.js (expiration not specified)
http://m.21-sun.com/resources/modules/touch.js (expiration not specified)
http://m.21-sun.com/resources/phone/app/common.js (expiration not specified)
http://m.21-sun.com/resources/phone/app/index.js (expiration not specified)
http://m.21-sun.com/resources/phone/css/Mobile.css (expiration not specified)
http://m.21-sun.com/resources/phone/css/Pad.css (expiration not specified)
http://m.21-sun.com/resources/phone/css/responsive.css (expiration not specified)
http://m.21-sun.com/resources/phone/css/style.css (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba01_h.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba02.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba03.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba04.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba05.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/ba06.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/l_i01.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/l_i02.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/l_i03.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/l_i04.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/m_i01.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/m_i02.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/m_i03.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/m_i04.png (expiration not specified)
http://m.21-sun.com/resources/phone/img/sun.png (expiration not specified)
http://m.21-sun.com/resources/phone/seajs.config.js (expiration not specified)
http://m.21-sun.com/scripts/jquery-1.7.min.js (expiration not specified)
http://pv.21-sun.com/http/stat.jsp (expiration not specified)
http://www.wajueji.com//upload/image/2016/06/20160622102315_490.png (expiration not specified)
http://c.cnzz.com/core.php?web_id=1254937551&t=z (15 minutes)
http://s4.cnzz.com/stat.php?id=1254937551&web_id=1254937551 (90 minutes)
http://resource.21-sun.com/internet/21sun_news/ima…/20160708081416_59.jpg (24 hours)
http://resource.21-sun.com/internet/used2013/image…20160516180126_235.jpg (24 hours)
http://resource.21-sun.com/internet/used2013/image…20160518100216_967.jpg (24 hours)
http://resource.21-sun.com/internet/used2013/image…20160519145554_371.jpg (24 hours)
http://resource.21-sun.com/internet/used2013/image…20160519203500_262.jpg (24 hours)
http://resource.21-sun.com/internet/used2013/image…1/20160521204853_2.jpg (24 hours)

priority - 26 Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://21-sun.com/
http://www.21-sun.com/
http://m.21-sun.com/

priority - 16 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 157KiB (65% reduction).

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priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 33% of the final above-the-fold content could be rendered with the full HTML response.

priority - 1 Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 13.1KiB (44% reduction).

Minifying http://m.21-sun.com/resources/modules/slide.js could save 6.3KiB (53% reduction).
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Minifying http://m.21-sun.com/resources/modules/base.js could save 1.9KiB (31% reduction).
Minifying http://m.21-sun.com/resources/modules/tab.js could save 1.3KiB (41% reduction).
Minifying http://m.21-sun.com/resources/phone/app/common.js could save 1.2KiB (31% reduction).

21-sun.com Mobile Resources

Total Resources58
Number of Hosts12
Static Resources50
JavaScript Resources14
CSS Resources8

21-sun.com Mobile Resource Breakdown

21-sun.com mobile page usability

Last tested: 2019-12-04


Mobile Usability Good
96/100

21-sun.com Mobile Usability Test Quick Summary


priority - 3 Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 414 CSS pixels wide, but the viewport is only 411 CSS pixels wide. The following elements fall outside the viewport:

The element <li class="flex-1">精选</li> falls outside the viewport.

priority - 1 Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/news/news_con….jsp?id=157377">走向高端市场 徐工北美市场持续突破</a> is close to 1 other tap targets.

The tap target <a href="/news/news_con….jsp?id=157423">重汽济南专用车公司多功能抑尘车助力章丘马拉松赛</a> and 1 others are close to other tap targets.

The tap target <a href="/product/proDetail/XG955H.htm" class="btn01">询底价</a> and 5 others are close to other tap targets.
The tap target <a href="/">首页</a> is close to 2 other tap targets.

The tap target <a href="/news/">动态</a> and 4 others are close to other tap targets.

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21-sun.com Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


21-sun.com TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.