acert.cn - robtex.com

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acert.cn

DNSSEC⚠️ Not signed
A221.194.158.199🇨🇳 CHINA169-Backbone
A221.194.158.214🇨🇳 CHINA169-Backbone
NSdns1.p03.nsone.net ⭐ 🔒
A2620:4d:4000:6259:7:3:0:1🇺🇸 NSONE
PTRdns1.p03.nsone.net
A198.51.44.3🇺🇸 NSONE
PTRdns1.p03.nsone.net
NSdns1.c01.nsone.net.cn
A47.94.104.101🇨🇳 ALIBABA-CN-NET
PTRdns1.c01.nsone.net.cn
NSdns2.c01.nsone.net.cn
A106.14.209.108🇨🇳 ALIBABA-CN-NET
PTRdns2.c01.nsone.net.cn
NSdns3.c01.nsone.net.cn
A119.23.111.170🇨🇳 ALIBABA-CN-NET
PTRdns3.c01.nsone.net.cn
NSdns4.c01.nsone.net.cn
A118.190.149.197🇨🇳 ALIBABA-CN-NET
PTRdns4.c01.nsone.net.cn
SOAdns1.p03.nsone.netdnsadmin@cat.com serial=1613252086

cn

DNSSEC⚠️ Not signed
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=2034456417

Same first word

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acert.mobi
acert.biz
acert.one
acert.net.cn
acert.org
acert.asia
acert.in
acert.net
acert.cz
acert.pt
acert.be
acert.ca
acert.com.cn
acert.com.br
acert.fr
acert.info
acert.us
acert.ua
acert.sk
acert.de
acert.jp
acert.ie
acert.com
acert.cn

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DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSdns1.c01.nsone.net.cndns1.p03.nsone.netdns2.c01.nsone.net.cndns3.c01.nsone.net.cndns4.c01.nsone.net.cnns1.cat.comns1.p16.dynect.netns2.cat.comns2.p16.dynect.netns3.cat.comns3.p16.dynect.netns4.cat.comns4.p16.dynect.netns5.cat.comA221.194.158.199221.194.158.214
●NSdns1.c01.nsone.net.cn2026-02-16 → 2026-02-19 · 3 obs
○ 2017-04-03 07:05:18
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
●NSdns1.p03.nsone.net2026-02-16 → 2026-02-19 · 3 obs
○ 2017-04-03 07:05:18
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
●NSdns2.c01.nsone.net.cn2026-02-16 → 2026-02-19 · 3 obs
○ 2017-04-03 07:05:18
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
●NSdns3.c01.nsone.net.cn2026-02-16 → 2026-02-19 · 3 obs
○ 2017-04-03 07:05:18
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
●NSdns4.c01.nsone.net.cn2026-02-16 → 2026-02-19 · 3 obs
○ 2017-04-03 07:05:18
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
○NSns1.cat.com2015-05-26 → 2016-04-13 · 4 obs
● 2015-05-26 20:27:50
● 2016-04-13 09:52:04
○ 2017-04-03 07:05:18
○ 2026-02-19 02:33:28
○NSns1.p16.dynect.net2017-04-03 → 2017-04-03 · 4 obs
○ 2016-04-13 09:52:04
● 2017-04-03 07:05:18
○ 2026-02-16 08:21:22
○ 2026-02-19 02:33:28
○NSns2.cat.com2015-05-26 → 2016-04-13 · 4 obs
● 2015-05-26 20:27:50
● 2016-04-13 09:52:04
○ 2017-04-03 07:05:18
○ 2026-02-19 02:33:28
○NSns2.p16.dynect.net2017-04-03 → 2017-04-03 · 4 obs
○ 2016-04-13 09:52:04
● 2017-04-03 07:05:18
○ 2026-02-16 08:21:22
○ 2026-02-19 02:33:28
○NSns3.cat.com2015-05-26 → 2016-04-13 · 4 obs
● 2015-05-26 20:27:50
● 2016-04-13 09:52:04
○ 2017-04-03 07:05:18
○ 2026-02-19 02:33:28
○NSns3.p16.dynect.net2017-04-03 → 2017-04-03 · 4 obs
○ 2016-04-13 09:52:04
● 2017-04-03 07:05:18
○ 2026-02-16 08:21:22
○ 2026-02-19 02:33:28
○NSns4.cat.com2015-05-26 → 2016-04-13 · 4 obs
● 2015-05-26 20:27:50
● 2016-04-13 09:52:04
○ 2017-04-03 07:05:18
○ 2026-02-19 02:33:28
○NSns4.p16.dynect.net2017-04-03 → 2017-04-03 · 4 obs
○ 2016-04-13 09:52:04
● 2017-04-03 07:05:18
○ 2026-02-16 08:21:22
○ 2026-02-19 02:33:28
○NSns5.cat.com2015-05-26 → 2016-04-13 · 4 obs
● 2015-05-26 20:27:50
● 2016-04-13 09:52:04
○ 2017-04-03 07:05:18
○ 2026-02-19 02:33:28
●A221.194.158.1992026-02-16 → 2026-02-19 · 2 obs
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28
●A221.194.158.2142026-02-16 → 2026-02-19 · 2 obs
● 2026-02-16 08:21:22
● 2026-02-19 02:33:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cne.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...-
acert.cndns1.c01.nsone.net.cn, dns2.c01.nsone.net.cn, dns3.c01.nsone.net.cn, dns4.c01.nsone.net.cn-

✅ Authoritative Response

Server: 47.94.104.101

NS records: dns1.c01.nsone.net.cn, dns2.c01.nsone.net.cn, dns3.c01.nsone.net.cn, dns4.c01.nsone.net.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for acert.cn (unsigned zone)

⏱️ Timing

Total: 2250ms | Queries: -

📄 Records

TypeCountSample Data
A260.210.22.219, 124.134.127.97
NS4dns1.c01.nsone.net.cn, dns3.c01.nsone.net.cn...
SOA1dns1.p03.nsone.net dnsadmin.cat.com

AI analysis

acert.cn points to two IP numbers: 221.194.158.199 and 221.194.158.214.

acert.cn is delegated to five name servers: dns1.p03.nsone.net, dns1.c01.nsone.net.cn, dns2.c01.nsone.net.cn, dns3.c01.nsone.net.cn and dns4.c01.nsone.net.cn.

acert.cn at least partially shares name servers with other domains, for example auth10tic.com, earthstonetileworks.com, tomharrad.co.uk, plusfoursmgmt.com and habittracker.com.

these name servers are commonly used with the following name servers: dns5.c01.nsone.net.cn, dns1.p01.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net, dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net, dns4.p02.nsone.net and dns1.p08.nsone.net.

Host names with two IP numbers:

dns1.p03.nsone.net points to: 2620:4d:4000:6259:7:3:0:1 and 198.51.44.3.

Host names with one IP number:

dns1.c01.nsone.net.cn points to: 47.94.104.101.

dns2.c01.nsone.net.cn points to: 106.14.209.108.

dns3.c01.nsone.net.cn points to: 119.23.111.170.

dns4.c01.nsone.net.cn points to: 118.190.149.197.