21dianyuan.com 世纪电源网-电子电源行业综合服务商

权威的电源行业门户网站,整合行业资源,人气旺的电源社区,电源论坛,在线研讨会,电源专家互动,电源培训,电源网上信息发布,采 购信息,产品供应,企业招聘,工程师求职,电源软件,电源设计技术文章等

21dianyuan.com Overview

21dianyuan.com ranking shows that the page is at position 0 over the world.

In terms of rank-to-traffic ratio, 21dianyuan.com has 6,601 unique users per day, viewing 26,641 pages. The rank based value of 21dianyuan.com is 40,281 USD. Every user makes 4.28 pageviews on average.

21dianyuan.com boasts a link base consisting of 429 referring domains and 485 external backlinks, as revealed by the data obtained from web network scanning.

21dianyuan.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in April 26, 2021, 21dianyuan.com has an expired wildcard SSL certificate issued by DigiCert Inc (expired on May 15, 2021). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by DigiCert Inc.

Based on data from Google Safe Browsing, Google Safe Search and Symantec 21dianyuan.com is a fairly safe domain.

Based on Mobile-Friendly test by Google 21dianyuan.com is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices.

21dianyuan.com Rank Summary

Global Rank
0
Average Load Time
0.00sec
Links In Count
0
Website Value
$37,297

21dianyuan.com Website Safety

logo
Overview
Last Updated: 12/26/2024
Overall result - 21dianyuan.com is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton connect safe logo
Norton Connect Safe
Last Updated: 03/21/2024
21dianyuan.com is safe.
Norton ConnectSafe evaluates 21dianyuan.com for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 02/11/2019
21dianyuan.com is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google safe brwosing logo
Google Safe Browsing
Last Updated: 01/09/2019
21dianyuan.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee logo
Site Advisor
Last Updated: 02/22/2021
21dianyuan.com is safe.
McAfee assesses 21dianyuan.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze 21dianyuan.com for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 12/26/2024
21dianyuan.com child safety is unknown.
The WOT calculates reputation of the 21dianyuan.com. This reputation system receives ratings from users and information from third-party sources, assesses the 21dianyuan.com for safety features and confirms, whether 21dianyuan.com is suitable for children.

SSL Information
Domain*.21dianyuan.com
Issuer OrganizationDigiCert Inc
IssuerRapidSSL RSA CA 2018
AlgorithmRSA-SHA256
Valid form05/15/2020
Expiration05/15/2021
SignedCertificate is not self signed
Additional Domains *.21dianyuan.com
21dianyuan.com

21dianyuan.com Rank History

21dianyuan.com Hosting Information

Server Location

ASN Information

Last Update: 07/19/2024

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS37888 - AS38911'

as-block: AS37888 - AS38911
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2009-09-29T06:04:16Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS37936 - AS37970'

as-block: AS37936 - AS37970
descr: CNNIC ASN block
country: CN
remarks: These AS numbers are further assigned by CNNIC
remarks: to CNNIC members and end-users in China
admin-c: IPAS1-AP
tech-c: IPAS1-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNNIC-AP
last-modified: 2008-09-04T06:40:26Z
source: APNIC

role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
address: Haidian District, Beijing
country: CN
phone: +86-010-58813000
fax-no: +86-010-58813075
e-mail: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
nic-hdl: IPAS1-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-09-12T07:40:01Z
source: APNIC

% Information related to 'AS37963'

% Abuse contact for 'AS37963' is 'ipas@cnnic.cn'

aut-num: AS37963
as-name: CNNIC-ALIBABA-CN-NET-AP
descr: Hangzhou Alibaba Advertising Co.,Ltd.
descr: East Software Park, 99 Huaxing Rd.
descr: Hangzhou, China
country: CN
admin-c: ZM678-AP
tech-c: ZM877-AP
tech-c: ZM876-AP
tech-c: ZM875-AP
import: from AS4837
action pref=100;
accept ANY
import: from AS4134
action pref=100;
accept ANY
export: to AS4837
announce AS37963
export: to AS4134
announce AS37963
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-CNNIC-CN
last-modified: 2013-07-24T02:44:02Z
source: APNIC

irt: IRT-CNNIC-CN
address: Beijing, China
e-mail: ipas@cnnic.cn
abuse-mailbox: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
auth: # Filtered
remarks: Please note that CNNIC is not an ISP and is not
remarks: empowered to investigate complaints of network abuse.
remarks: Please contact the tech-c or admin-c of the network.
mnt-by: MAINT-CNNIC-AP
last-modified: 2017-11-01T08:57:39Z
source: APNIC

person: Shuo Yu
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: shuo.yus@alibaba-inc.com
e-mail: shuo.yus@aliyun-inc.com
nic-hdl: ZM678-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2011-11-02T03:36:02Z
source: APNIC

person: Guoxin Gao
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: anti-spam@list.alibaba-inc.com
nic-hdl: ZM875-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2014-07-30T01:56:01Z
source: APNIC

person: security trouble
e-mail: cloud-cc-sqcloud@list.alibaba-inc.com
address: 5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen’er Road
address: Hangzhou, Zhejiang, China
phone: +86-0571-85022600
country: CN
mnt-by: MAINT-CNNIC-AP
nic-hdl: ZM876-AP
last-modified: 2013-07-08T02:56:02Z
source: APNIC

person: Guowei Pan
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022088-30763
fax-no: +86-0571-85022600
e-mail: guowei.pangw@alibaba-inc.com
nic-hdl: ZM877-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-07-09T01:34:02Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

21dianyuan.com Domain Registration and Settings

WHOIS

Domain Name: 21DIANYUAN.COM
Registry Domain ID: 1385028903_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.webnic.cc
Registrar URL: http://https://www.webnic.cc
Updated Date: 2019-12-11T05:58:04Z
Creation Date: 2008-01-22T08:44:33Z
Registry Expiry Date: 2025-01-22T08:44:33Z
Registrar: Web Commerce Communications Limited dba WebNic.cc
Registrar IANA ID: 460
Registrar Abuse Contact Email: compliance_abuse@webnic.cc
Registrar Abuse Contact Phone: +60.189836788
Domain Status: ok https://icann.org/epp#ok
Name Server: F1G1NS1.DNSPOD.NET
Name Server: F1G1NS2.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-16T22:34:46Z


DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL

21dianyuan.com HTML Check


Errors
Warnings

21dianyuan.com Desktop Performance

Last tested: 08/31/2016

Speedometer image
Desktop Speed
76%

Desktop Resource Breakdown
Total Resources125
Number of Hosts16
Static Resources114
JavaScript Resources15
CSS Resources2

21dianyuan.com Mobile Insights

Last tested: 08/31/2016

Speedometer image
Mobile Usability
58%
Speedometer image
Mobile Speed
66%

Mobile Resource Breakdown
Total Resources132
Number of Hosts15
Static Resources119
JavaScript Resources20
CSS Resources3

21dianyuan.com Common Typos

www.21dianyuan.com
www.21dianyuan.net
www.21dianyuan.org
www.21dianyuan.info
www.21dianyuan.biz
www.21dianyuan.us
www.21dianyuan.mobi
www.1dianyuan.com
www.21dianyuan.com
www.2dianyuan.com
www.21ianyuan.com
www.21xianyuan.com
www.21dxianyuan.com
www.21xdianyuan.com
www.21sianyuan.com
www.21dsianyuan.com
www.21sdianyuan.com
www.21eianyuan.com
www.21deianyuan.com
www.21edianyuan.com
www.21rianyuan.com
www.21drianyuan.com
www.21rdianyuan.com
www.21fianyuan.com
www.21dfianyuan.com
www.21fdianyuan.com
www.21cianyuan.com
www.21dcianyuan.com
www.21cdianyuan.com
www.21danyuan.com
www.21duanyuan.com
www.21diuanyuan.com
www.21duianyuan.com
www.21djanyuan.com
www.21dijanyuan.com
www.21djianyuan.com
www.21dkanyuan.com
www.21dikanyuan.com
www.21dkianyuan.com
www.21doanyuan.com
www.21dioanyuan.com
www.21doianyuan.com
www.21dinyuan.com
www.21diqnyuan.com
www.21diaqnyuan.com
www.21diqanyuan.com
www.21diwnyuan.com
www.21diawnyuan.com
www.21diwanyuan.com
www.21disnyuan.com
www.21diasnyuan.com
www.21disanyuan.com
www.21diznyuan.com
www.21diaznyuan.com
www.21dizanyuan.com
www.21diayuan.com
www.21diabyuan.com
www.21dianbyuan.com
www.21diabnyuan.com
www.21diahyuan.com
www.21dianhyuan.com
www.21diahnyuan.com
www.21diajyuan.com
www.21dianjyuan.com
www.21diajnyuan.com
www.21diamyuan.com
www.21dianmyuan.com
www.21diamnyuan.com
www.21dianuan.com
www.21diantuan.com
www.21dianytuan.com
www.21diantyuan.com
www.21dianguan.com
www.21dianyguan.com
www.21diangyuan.com
www.21dianhuan.com
www.21dianyhuan.com
www.21dianuuan.com
www.21dianyuuan.com
www.21dianuyuan.com
www.21dianyan.com
www.21dianyyan.com
www.21dianyuyan.com
www.21dianyyuan.com
www.21dianyhan.com
www.21dianyuhan.com
www.21dianyjan.com
www.21dianyujan.com
www.21dianyjuan.com
www.21dianyian.com
www.21dianyuian.com
www.21dianyiuan.com
www.21dianyun.com
www.21dianyuqn.com
www.21dianyuaqn.com
www.21dianyuqan.com
www.21dianyuwn.com
www.21dianyuawn.com
www.21dianyuwan.com
www.21dianyusn.com
www.21dianyuasn.com
www.21dianyusan.com
www.21dianyuzn.com
www.21dianyuazn.com
www.21dianyuzan.com
www.21dianyua.com
www.21dianyuab.com
www.21dianyuanb.com
www.21dianyuabn.com
www.21dianyuah.com
www.21dianyuanh.com
www.21dianyuahn.com
www.21dianyuaj.com
www.21dianyuanj.com
www.21dianyuajn.com
www.21dianyuam.com
www.21dianyuanm.com
www.21dianyuamn.com
www.21dianyuan.con