51dns.com 51DNS智能解析管理软件

51DNS智能解析管理软件是厦门帝恩思科技股份有限公司旗下的域名智能解析管理软件,主要为互联网企业提供免费和收费两种DNS智能解析服务。软件自主研发内核、可自建无限节点、自定义NS地址、可视化界面管理、本地快速部署等功能。

Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 07/08/2025

51dns.com attracts 214,967 unique visitors daily, generating 1,289,804 pageviews. The estimated value of 51dns.com is 1,857,434 USD. Each visitor views approximately 6.42 pages on average.

According to Majestic's traffic estimates, 51dns.com ranks 13,937 globally.

51dns.com server is located in -, so we cannot determine if the distance might affect the page load time.

See the list of other websites hosted by CHINATELECOM-FUJIAN-XIAMEN-IDC1 Xiamen, CN.

51dns.com is registered with the .COM top-level domain. Explore additional websites within the .COM zone.

A recent examination on (July 15, 2024), indicates that 51dns.com has an expired wildcard SSL certificate issued by TrustAsia Technologies, Inc. (expired on July 23, 2024). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by TrustAsia Technologies, Inc..

According to Google Safe Browsing, Google Safe Search and Symantec 51dns.com appears to be a safe domain.

Based on Google's Mobile-Friendly test, 51dns.com is not well optimized for mobile and tablet devices. Ensuring your site is mobile-friendly guarantees better performance across all devices.

Global Rank
0
Average Load Time
0.00sec
Links In Count
6
Website Value
$1.7 M
Overview
Last Updated: 07/08/2025
Overall result - 51dns.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
Last Updated: 03/21/2025
51dns.com is safe.
Norton ConnectSafe evaluates 51dns.com for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 05/22/2019
51dns.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 Browsing
Last Updated: 01/09/2019
51dns.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.
Site Advisor
Last Updated: 02/26/2021
51dns.com is safe.
McAfee assesses 51dns.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 51dns.com for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 07/08/2025
51dns.com child safety is unknown.
The WOT calculates reputation of the 51dns.com. This reputation system receives ratings from users and information from third-party sources, assesses the 51dns.com for safety features and confirms, whether 51dns.com is suitable for children.

51dns.com | SSL Certificate Information
Domain*.51dns.com
Issuer OrganizationTrustAsia Technologies, Inc.
IssuerTrustAsia ECC DV TLS CA G3
Algorithmecdsa-with-SHA256
Valid form04/24/2024
Expiration07/23/2024
SignedCertificate is not self signed
Additional Domains *.51dns.com
Server Location

51dns.com ASN Information

ASN ID: 133775
ASN Title: CHINATELECOM-FUJIAN-XIAMEN-IDC1 Xiamen, CN

Last Update: 11/09/2024

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

% Information related to 'AS133632 - AS134556'

as-block: AS133632 - AS134556
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: 2014-09-03T01:31:49Z
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 'AS133775'

% Abuse contact for 'AS133775' is 'abuse@fjdcb.fz.fj.cn'

aut-num: AS133775
as-name: CHINATELECOM-Fujian-Xiamen-IDC1
descr: Xiamen
descr: Hubing Bei Road 135#, Xiamen, Fujian Province, P.R.China.
descr: 361000
country: CN
remarks: Networks Of IDC, Chinatelecom Fujian Province, P.R.China.
admin-c: CH93-AP
tech-c: CH93-AP
notify: Zhengzm@gsta.com
mnt-by: MAINT-CHINANET
mnt-routes: MAINT-CHINANET
mnt-irt: IRT-CHINANET-FJ
last-modified: 2014-10-28T02:43:17Z
source: APNIC

irt: IRT-CHINANET-FJ
address: no.7,dongjie road,fuzhou,fujian,china
e-mail: fjnic@fjdcb.fz.fj.cn
abuse-mailbox: abuse@fjdcb.fz.fj.cn
admin-c: CA67-AP
tech-c: CA67-AP
auth: # Filtered
mnt-by: MAINT-CHINANET-FJ
last-modified: 2010-12-07T08:58:01Z
source: APNIC

person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@ns.chinanet.cn.net
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2014-02-27T03:37:38Z
source: APNIC

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

WHOIS

Domain Name: 51DNS.COM
Registry Domain ID: 84015905_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.22.cn
Registrar URL: http://www.22.cn
Updated Date: 2024-08-12T07:04:16Z
Creation Date: 2002-02-27T09:03:40Z
Registry Expiry Date: 2026-02-27T09:03:40Z
Registrar: 22net, Inc.
Registrar IANA ID: 1555
Registrar Abuse Contact Email: abuse@22.cn
Registrar Abuse Contact Phone: +86.571.88276020
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: M1.51DNS.COM
Name Server: M2.51DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-12-18T18:33:36Z


DNS Records
HostA RecordTTL
51dns.comwww.51dns.com600
HostMX RecordPriorityTTL
51dns.commxbiz2.qq.com103600
51dns.commxbiz1.qq.com53600
HostNS RecordTTL
51dns.comm1.51dns.com86400
51dns.comm2.51dns.com86400
HostTXT RecordTTL
51dns.comv=spf1 include:spf.mail.qq.com ~all3600
51dns.com864335953-309712597600

m1.51dns.com
TTL: 600
Email address: admin.51dns.com
Serial: 1685948711
Refresh: 7200
Retry: 3600
Expire: 1209600
Minimum: 1800

Warnings

Errors

Last tested: 12/04/2017

Desktop
Desktop Speed
80%

Desktop Resource Breakdown
Total Resources53
Number of Hosts8
Static Resources47
JavaScript Resources8
CSS Resources4

Last tested: 01/15/2016

Mobile
Mobile Usability
54%
Mobile Speed
62%

Mobile Resource Breakdown
Total Resources52
Number of Hosts3
Static Resources48
JavaScript Resources6
CSS Resources2
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