21VIANET.COM 世纪互联


21vianet.com website information.

21vianet.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 21vianet.com domain:

  • no

and probably website 21vianet.com is hosted by FASTLY - Fastly, US web hosting company. Check the complete list of other most popular websites hosted by FASTLY - Fastly, US hosting company.

According to Alexa traffic rank the highest website 21vianet.com position was 9417 (in the world). The lowest Alexa rank position was 991298. Now website 21vianet.com ranked in Alexa database as number 571253 (in the world).

Website 21vianet.com Desktop speed measurement score (3/100) is better than the results of 0.37% of other sites shows that the page desktop performance can be improved.

21vianet.com Mobile usability score (93/100) is better than the results of 34.93% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of 21vianet.com (1/100) is better than the results of 0.11% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Nov-19-2024 571,253-16,786
Nov-18-2024 554,467-4,412
Nov-17-2024 550,055-4,990
Nov-16-2024 545,0651,719
Nov-15-2024 546,7847,807
Nov-14-2024 554,591-3,639
Nov-13-2024 550,9520

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21vianet.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.



21vianet.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: 21VIANET.COM
Registry Domain ID: 24815344_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2023-04-15T05:03:38Z
Creation Date: 2000-04-13T02:28:25Z
Registry Expiry Date: 2028-04-13T02:28:25Z
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: NS.INTERCOM.COM.CN
Name Server: NS1.INTERCOM.COM.CN
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-19T09:56:26Z

21vianet.com server information

Servers Location

IP Address
no
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Region
City

21vianet.com desktop page speed rank

Last tested: 2018-10-27


Desktop Speed Bad
3/100

21vianet.com Desktop Speed Test Quick Summary


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priority - 2 Minify CSS

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priority - 1 Minify HTML

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21vianet.com Desktop Resources

Total Resources109
Number of Hosts4
Static Resources106
JavaScript Resources16
CSS Resources7

21vianet.com Desktop Resource Breakdown

21vianet.com mobile page speed rank

Last tested: 2018-10-27


Mobile Speed Bad
1/100

21vianet.com Mobile Speed Test Quick Summary


priority - 535 Optimize images

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priority - 80 Leverage browser caching

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http://21vianet.com/images/leftbtn.png (expiration not specified)
http://21vianet.com/images/liuxing.png (expiration not specified)
http://21vianet.com/images/map2.png (expiration not specified)
http://21vianet.com/images/map3.png (expiration not specified)
http://21vianet.com/images/micon1.png (expiration not specified)
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http://21vianet.com/images/micon4.png (expiration not specified)
http://21vianet.com/images/micon6.png (expiration not specified)
http://21vianet.com/images/mnav.png (expiration not specified)
http://21vianet.com/images/nextbtn2.png (expiration not specified)
http://21vianet.com/images/phone.png (expiration not specified)
http://21vianet.com/images/pic4.png (expiration not specified)
http://21vianet.com/images/pic5.png (expiration not specified)
http://21vianet.com/images/pic8.jpg (expiration not specified)
http://21vianet.com/images/prevbtn.png (expiration not specified)
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http://21vianet.com/js/jquery.particleground.min.js (expiration not specified)
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http://www.21vianet.com/css/jquery.mmenu.all.css (expiration not specified)
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http://www.21vianet.com/js/idangerous.swiper.min.js (expiration not specified)
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http://www.21vianet.com/js/jquery-1.11.2.min.js (expiration not specified)
http://www.21vianet.com/js/jquery.carouFredSel-6.0.4-packed.js (expiration not specified)
http://www.21vianet.com/js/jquery.mmenu.all.min.js (expiration not specified)
http://www.21vianet.com/js/swiper.animate1.0.2.min.js (expiration not specified)
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http://bdimg.share.baidu.com/static/api/js/share/api_base.js (30 minutes)
http://bdimg.share.baidu.com/static/api/js/share/share_api.js?v=226108fe.js (30 minutes)
http://bdimg.share.baidu.com/static/api/js/trans/logger.js?v=60603cb3.js (30 minutes)
http://bdimg.share.baidu.com/static/api/js/view/share_view.js?v=3ae6026d.js (30 minutes)
http://bdimg.share.baidu.com/static/api/js/view/view_base.js (30 minutes)

priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

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http://www.21vianet.com/css/jquery.mmenu.all.css
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http://21vianet.com/css/index.css
http://21vianet.com/css/idangerous.swiper.css
http://21vianet.com/css/animate.css

priority - 35 Enable compression

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Compressing http://www.21vianet.com/js/idangerous.swiper.min.js could save 33.5KiB (73% reduction).
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priority - 3 Minify JavaScript

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

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priority - 2 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

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priority - 1 Minify HTML

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21vianet.com Mobile Resources

Total Resources111
Number of Hosts5
Static Resources107
JavaScript Resources16
CSS Resources7

21vianet.com Mobile Resource Breakdown

21vianet.com mobile page usability

Last tested: 2018-10-27


Mobile Usability Good
93/100

21vianet.com Mobile Usability Test Quick Summary


priority - 6 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 <span class="swiper-paginat…-active-switch"> and 1 others are close to other tap targets.

The tap target <span class="swiper-pagination-switch"> and 3 others are close to other tap targets.

The tap target <span class="swiper-pagination-switch"> and 6 others are close to other tap targets.
The tap target <a href="/kf/index_19.html">客户服务</a> and 12 others are close to other tap targets.

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21vianet.com Ping

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21vianet.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.