51csit.cn - robtex.com

51csit.cn

DNSSEC⚠️ Not signed
A114.67.76.101🇨🇳 SHANGHAITELECOM114.67.64.0/18 Chinaunicom Shanghai IDC
NSdns.bizcn.com ⭐
A240c:4082:ffff:ff01:0:d:0:34a🇨🇳 Baidu240c:4082::/32
A61.172.183.76🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.114🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
NSns1.dns.com.cn
A240c:4082:ffff:ff01:0:d:0:34a🇨🇳 Baidu240c:4082::/32
A61.172.183.70🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.114🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
NSns2.dns.com.cn
A240c:4082:ffff:ff01:0:d:0:69🇨🇳 Baidu240c:4082::/32
A61.172.183.76🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.147🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
MXmx2.dns.com.cn ⭐
A114.67.251.227🇨🇳 CHINA169-BJ114.67.224.0/19 China Telecom Beijing Co. Ltd.
PTRmx69.dns.com.cn
SOAdns.bizcn.comabuse@bizcn.com serial=8

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034678010

Same first word

51csit.com
51csit.cn

DNS History

6 records (5 active, 1 former)

20162017201820192020202120222023202420252026NSdns.bizcn.comns1.dns.com.cnns2.dns.com.cnMXmx2.dns.com.cnmail.51csit.cnA114.67.76.101
●NSdns.bizcn.com2017-03-22 → 2026-04-16 · 3 obs
○ 2016-06-30 07:31:28
● 2017-03-22 12:54:32
● 2026-04-16 17:17:00
●NSns1.dns.com.cn2015-08-20 → 2026-04-16 · 2 obs
● 2015-08-20 12:22:44
● 2026-04-16 17:17:00
●NSns2.dns.com.cn2015-08-20 → 2026-04-16 · 5 obs
● 2015-08-20 12:22:44
● 2016-06-30 07:31:28
○ 2017-03-22 12:54:32
● 2020-01-11 04:03:42
● 2026-04-16 17:17:00
○MXmail.51csit.cn2015-08-20 → 2020-01-11 · 4 obs
● 2015-08-20 12:22:44
● 2020-01-11 04:03:42
○ 2026-03-31 12:03:50
○ 2026-04-16 17:17:00
●MXmx2.dns.com.cn2026-03-31 → 2026-04-16 · 3 obs
○ 2020-01-11 04:03:42
● 2026-03-31 12:03:50
● 2026-04-16 17:17:00
●A114.67.76.1012026-03-31 → 2026-04-16 · 2 obs
● 2026-03-31 12:03:50
● 2026-04-16 17:17:00

🔍 DNS Trace

Analysis

IP Addresses

51csit.cn resolves to one IP number: 114.67.76.101.

other host names including www.pearlhydrogen.com, 51csit.com, pearlhydrogen.com, www.3io.com.cn and 3io.com.cn share IP numbers with 51csit.cn.

Name Servers

51csit.cn is delegated to three name servers dns.bizcn.com, ns1.dns.com.cn and ns2.dns.com.cn.

51csit.cn at least partially shares name servers with other domains, for instance airsus1.com, beijingsanyuan.com, cdmbr.com, chinasky.cc and wofang.com.

These name servers are commonly used alongside ns7.cnmsn.net, ns8.cnmsn.net, ns13.dns.com.cn, ns14.dns.com.cn, dns.cnmsn.net, ns5.cnmsn.net and ns6.cnmsn.net.

Names with three IPs:

dns.bizcn.com points to: 240c:4082:ffff:ff01:0:d:0:34a, 61.172.183.76 and 61.240.129.114.

ns1.dns.com.cn points to: 240c:4082:ffff:ff01:0:d:0:34a, 61.172.183.70 and 61.240.129.114.

ns2.dns.com.cn points to: 240c:4082:ffff:ff01:0:d:0:69, 61.172.183.76 and 61.240.129.147.

Names that point to 240c:4082:ffff:ff01:0:d:0:34a: dns.bizcn.com and ns1.dns.com.cn.

Names that point to 61.172.183.76: dns.bizcn.com and ns2.dns.com.cn.

Names that point to 61.240.129.114: dns.bizcn.com and ns1.dns.com.cn.

Mail Servers

51csit.cn is handled by a single mail server, mx2.dns.com.cn.

51csit.cn shares the same mail server setup as other domains, for instance expoyuantuo.com, hollybridal.com, ilag.com.cn, oyesee.net and pheworld.com.

51csit.cn shares at least some mail servers with other domains, including profibus-factory.com, lyzlyq.com, dfgs.cn and aew.com.cn.

mx2.dns.com.cn resolves to IP 114.67.251.227.