91brain.cn - robtex.com

91brain.cn

DNSSEC⚠️ Not signed
A208.98.43.98🇺🇸 SHARKTECH-1208.98.43.0/24
NSwww.91brain.cn ⭐
A208.98.40.36🇺🇸 SHARKTECH-1208.98.40.0/24
NSns1.4.cn ⚠️ Not in zone NS records
A107.167.27.66🇺🇸 SHARKTECH-1107.167.27.0/24 CMI (Customer Route)
NSns2.4.cn ⚠️ Not in zone NS records
A208.98.43.66🇺🇸 SHARKTECH-1208.98.43.0/24
PTRjensenstilbud.com
SOAwww.91brain.cn91brain@cn 2008-08-03 #0

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=2035002988

Subdomains

www.91brain.cn

Same first word

91brain.cn

DNS History

36 records (4 active, 32 former)

2020202120222023202420252026NSns1.4.cnns2.4.cnwww.91brain.cndns27.hichina.comdns28.hichina.comMXmxbiz1.qq.commxbiz2.qq.comA208.98.43.98208.98.40.202208.98.40.203208.98.40.204208.98.40.209208.98.40.210208.98.40.224208.98.40.71208.98.40.72208.98.40.75208.98.40.77208.98.40.80208.98.40.98208.98.43.11208.98.43.12208.98.43.13208.98.43.14208.98.43.16208.98.43.17208.98.43.20208.98.43.71208.98.43.73208.98.43.74208.98.43.75208.98.43.76208.98.43.78208.98.43.79208.98.43.80211.149.201.222
○NSdns27.hichina.com2019-04-14 → 2019-04-14 · 3 obs
● 2019-04-14 13:16:32
○ 2026-04-14 01:57:58
○ 2026-07-04 18:10:08
○NSdns28.hichina.com2019-04-14 → 2019-04-14 · 3 obs
● 2019-04-14 13:16:32
○ 2026-04-14 01:57:58
○ 2026-07-04 18:10:08
●NSns1.4.cn2026-04-14 → 2026-07-04 · 3 obs
○ 2019-04-14 13:16:32
● 2026-04-14 01:57:58
● 2026-07-04 18:10:08
●NSns2.4.cn2026-04-14 → 2026-07-04 · 3 obs
○ 2019-04-14 13:16:32
● 2026-04-14 01:57:58
● 2026-07-04 18:10:08
●NSwww.91brain.cn2026-04-14 → 2026-07-04 · 9 obs
○ 2019-04-14 13:16:32
● 2026-04-14 01:57:58
● 2026-04-14 21:12:32
○ 2026-04-22 03:20:12
● 2026-04-23 10:01:44
● 2026-06-03 00:30:44
○ 2026-06-03 04:15:56
● 2026-06-03 05:31:02
● 2026-07-04 18:10:08
○MXmxbiz1.qq.com2019-04-14 → 2019-04-14 · 3 obs
● 2019-04-14 13:16:32
○ 2026-04-14 01:57:58
○ 2026-07-04 18:10:08
○MXmxbiz2.qq.com2019-04-14 → 2019-04-14 · 3 obs
● 2019-04-14 13:16:32
○ 2026-04-14 01:57:58
○ 2026-07-04 18:10:08
○A208.98.40.2022026-05-21 → 2026-06-16 · 7 obs
○ 2026-05-21 14:39:26
● 2026-05-21 22:36:14
○ 2026-05-22 00:24:32
○ 2026-06-16 17:57:26
● 2026-06-16 20:04:54
○ 2026-06-17 10:52:58
○ 2026-07-04 18:10:08
○A208.98.40.2032026-05-11 → 2026-06-19 · 10 obs
○ 2026-05-09 02:30:04
● 2026-05-11 06:56:00
○ 2026-05-11 09:04:16
○ 2026-06-15 20:52:54
● 2026-06-16 17:57:26
○ 2026-06-16 20:04:54
○ 2026-06-18 09:23:48
● 2026-06-19 00:08:00
○ 2026-06-20 00:06:34
○ 2026-07-04 18:10:08
○A208.98.40.2042026-05-22 → 2026-06-23 · 8 obs
○ 2026-05-21 22:36:14
● 2026-05-22 00:24:32
○ 2026-05-26 11:01:08
● 2026-06-20 00:06:34
○ 2026-06-21 00:05:16
● 2026-06-23 10:56:08
○ 2026-06-23 17:15:58
○ 2026-07-04 18:10:08
○A208.98.40.2092026-06-22 → 2026-06-22 · 4 obs
○ 2026-06-21 00:05:16
● 2026-06-22 00:08:12
○ 2026-06-23 00:07:30
○ 2026-07-04 18:10:08
○A208.98.40.2102026-06-03 → 2026-06-24 · 9 obs
○ 2026-06-03 05:31:02
● 2026-06-03 06:12:12
○ 2026-06-03 06:55:24
○ 2026-06-17 10:52:58
● 2026-06-18 00:06:16
○ 2026-06-18 09:23:48
● 2026-06-24 00:10:38
○ 2026-06-24 01:57:28
○ 2026-07-04 18:10:08
○A208.98.40.2242026-06-28 → 2026-06-28 · 4 obs
○ 2026-06-24 01:57:28
● 2026-06-28 00:05:44
○ 2026-07-01 16:23:40
○ 2026-07-04 18:10:08
○A208.98.40.712026-04-30 → 2026-05-11 · 7 obs
○ 2026-04-29 09:32:12
● 2026-04-30 08:16:34
○ 2026-04-30 09:23:40
○ 2026-05-11 06:56:00
● 2026-05-11 09:04:16
○ 2026-05-16 06:20:18
○ 2026-07-04 18:10:08
○A208.98.40.722026-04-29 → 2026-06-23 · 12 obs
○ 2026-04-26 14:14:36
● 2026-04-29 09:32:12
○ 2026-04-30 08:16:34
○ 2026-04-30 09:23:40
● 2026-05-07 23:22:18
○ 2026-05-09 02:30:04
○ 2026-05-31 10:03:24
● 2026-06-02 06:46:54
○ 2026-06-02 13:40:24
● 2026-06-23 18:06:04
○ 2026-06-23 20:36:04
○ 2026-07-04 18:10:08
○A208.98.40.752026-06-03 → 2026-06-08 · 8 obs
○ 2026-06-02 15:55:32
● 2026-06-03 00:30:44
● 2026-06-03 04:15:56
○ 2026-06-03 05:31:02
○ 2026-06-06 19:41:06
● 2026-06-08 17:13:20
○ 2026-06-09 09:37:06
○ 2026-07-04 18:10:08
○A208.98.40.772026-06-23 → 2026-06-23 · 4 obs
○ 2026-06-23 18:06:04
● 2026-06-23 20:36:04
○ 2026-06-24 00:10:38
○ 2026-07-04 18:10:08
○A208.98.40.802026-04-24 → 2026-04-24 · 4 obs
○ 2026-04-23 10:01:44
● 2026-04-24 07:37:46
○ 2026-04-25 21:00:02
○ 2026-07-04 18:10:08
○A208.98.40.982026-07-01 → 2026-07-01 · 4 obs
○ 2026-06-28 00:05:44
● 2026-07-01 16:23:40
○ 2026-07-04 18:10:06
○ 2026-07-04 18:10:08
○A208.98.43.112026-05-21 → 2026-05-21 · 4 obs
○ 2026-05-18 09:10:36
● 2026-05-21 14:39:26
○ 2026-05-21 22:36:14
○ 2026-07-04 18:10:08
○A208.98.43.122026-05-16 → 2026-05-16 · 4 obs
○ 2026-05-11 09:04:16
● 2026-05-16 06:20:18
○ 2026-05-18 09:10:36
○ 2026-07-04 18:10:08
○A208.98.43.132026-04-26 → 2026-06-03 · 7 obs
○ 2026-04-25 21:00:02
● 2026-04-26 14:14:36
○ 2026-04-29 09:32:12
○ 2026-06-03 06:12:12
● 2026-06-03 06:55:24
○ 2026-06-06 19:41:06
○ 2026-07-04 18:10:08
○A208.98.43.142026-04-14 → 2026-06-24 · 9 obs
○ 2026-04-14 12:13:56
● 2026-04-14 21:12:32
○ 2026-04-22 03:20:12
○ 2026-06-02 06:46:54
● 2026-06-02 13:40:24
○ 2026-06-02 15:55:32
● 2026-06-24 01:57:28
○ 2026-06-28 00:05:44
○ 2026-07-04 18:10:08
○A208.98.43.162026-04-25 → 2026-05-18 · 7 obs
○ 2026-04-24 07:37:46
● 2026-04-25 21:00:02
○ 2026-04-26 14:14:36
○ 2026-05-16 06:20:18
● 2026-05-18 09:10:36
○ 2026-05-21 14:39:26
○ 2026-07-04 18:10:08
○A208.98.43.172026-06-02 → 2026-06-06 · 7 obs
○ 2026-06-02 13:40:24
● 2026-06-02 15:55:32
○ 2026-06-03 00:30:44
○ 2026-06-03 06:55:24
● 2026-06-06 19:41:06
○ 2026-06-08 17:13:20
○ 2026-07-04 18:10:08
○A208.98.43.202026-05-31 → 2026-05-31 · 4 obs
○ 2026-05-27 02:03:22
● 2026-05-31 10:03:24
○ 2026-06-02 06:46:54
○ 2026-07-04 18:10:08
○A208.98.43.712026-06-03 → 2026-06-03 · 4 obs
○ 2026-06-03 04:15:56
● 2026-06-03 05:31:02
○ 2026-06-03 06:12:12
○ 2026-07-04 18:10:08
○A208.98.43.732026-04-14 → 2026-06-21 · 10 obs
○ 2019-04-14 13:16:32
● 2026-04-14 01:57:58
● 2026-04-14 12:13:56
○ 2026-04-14 21:12:32
○ 2026-06-16 20:04:54
● 2026-06-17 10:52:58
○ 2026-06-18 00:06:16
● 2026-06-21 00:05:16
○ 2026-06-22 00:08:12
○ 2026-07-04 18:10:08
○A208.98.43.742026-05-09 → 2026-06-23 · 9 obs
○ 2026-05-07 23:22:18
● 2026-05-09 02:30:04
○ 2026-05-11 06:56:00
○ 2026-06-08 17:13:20
● 2026-06-09 09:37:06
○ 2026-06-13 00:07:14
● 2026-06-23 17:15:58
○ 2026-06-23 18:06:04
○ 2026-07-04 18:10:08
○A208.98.43.752026-06-18 → 2026-06-18 · 4 obs
○ 2026-06-18 00:06:16
● 2026-06-18 09:23:48
○ 2026-06-19 00:08:00
○ 2026-07-04 18:10:08
○A208.98.43.762026-06-15 → 2026-06-23 · 6 obs
○ 2026-06-13 00:07:14
● 2026-06-15 20:52:54
○ 2026-06-16 17:57:26
● 2026-06-23 00:07:30
○ 2026-06-23 10:56:08
○ 2026-07-04 18:10:08
○A208.98.43.782026-04-23 → 2026-05-27 · 8 obs
○ 2026-04-22 03:20:12
● 2026-04-23 10:01:44
○ 2026-04-24 07:37:46
○ 2026-05-22 00:24:32
● 2026-05-26 11:01:08
● 2026-05-27 02:03:22
○ 2026-05-31 10:03:24
○ 2026-07-04 18:10:08
○A208.98.43.792026-04-30 → 2026-04-30 · 4 obs
○ 2026-04-30 08:16:34
● 2026-04-30 09:23:40
○ 2026-05-07 23:22:18
○ 2026-07-04 18:10:08
○A208.98.43.802026-06-13 → 2026-06-13 · 4 obs
○ 2026-06-09 09:37:06
● 2026-06-13 00:07:14
○ 2026-06-15 20:52:54
○ 2026-07-04 18:10:08
●A208.98.43.982026-07-04 → 2026-07-04 · 3 obs
○ 2026-07-01 16:23:40
● 2026-07-04 18:10:06
● 2026-07-04 18:10:08
○A211.149.201.2222019-04-14 → 2019-04-14 · 3 obs
● 2019-04-14 13:16:32
○ 2026-04-14 01:57:58
○ 2026-07-04 18:10:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
91brain.cnns1.4.cn, ns2.4.cn-

✅ Authoritative Response

Server:107.167.27.66

NS records: ns1.4.cn, ns2.4.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 91brain.cn (unsigned zone)

⏱️ Timing

Total: 935ms | Queries: -

📄 Records

TypeCountSample Data
A1208.98.43.31
SOA1www.91brain.cn 91brain.cn

Analysis

Hierarchy

www.91brain.cn is delegated beneath 91brain.cn.

IP Addresses

91brain.cn resolves to one IP address: 208.98.43.98.

www.huanqiujingmao.com, www.www.dy44.com, www.hubby.cz.cc and two other host names share IP numbers with 91brain.cn.

Name Servers

The authoritative name servers for 91brain.cn are ns1.4.cn, ns2.4.cn and www.91brain.cn — three in total.

There is at least partial name server overlap between 91brain.cn and other domains — pushu.com, htgs123.cn, ywv.cn and two more among them.

These name servers are routinely deployed together with the name servers www.pushu.com.

The hostnames ns1.4.cn, ns2.4.cn and www.91brain.cn each resolve to a single IP: ns1.4.cn → 107.167.27.66, ns2.4.cn → 208.98.43.66, www.91brain.cn → 208.98.40.36.