cttn.kr - robtex.com

cttn.kr

DNSSEC⚠️ Not signed
NSans1.hostcocoa.com ⭐
A205.251.192.117🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-117.awsdns-14.com
NSans2.hostcocoa.com
A205.251.195.46🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-814.awsdns-37.net
NSans3.hostcocoa.com
A205.251.197.133🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1413.awsdns-48.org
NSans4.hostcocoa.com
A205.251.198.221🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1757.awsdns-27.co.uk
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
MXnb3vawab2ngiqurn7wcg22muoxz6vbk7n6tj7kksvyrfvcjbic3a.mx-verification.google.com(15)
SOAans1.hostcocoa.comawsdns-hostmaster@amazon.com serial=1

kr

DNSSEC🔒 Signed (DS record present)
NSg.dns.kr ⭐ 🔒
NSb.dns.kr
NSc.dns.kr 🔒
NSd.dns.kr 🔒
NSe.dns.kr 🔒
NSf.dns.kr 🔒
SOAg.dns.krdomain-manager@nic.or.kr serial=2603080650

Same first word

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cttn.com.cn
cttn.org
cttn.me
cttn.com
cttn.kr

Similar names

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nctt.jp
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ttnc.org
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nctt.com
tcnt.eu
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ttcn.com
ctnt.org
cntt.com
nctt.cn
cntt.co.th
tntc.com
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ctnt.co.kr
tcnt.com.cn
tcnt.com
nttc.fr
ctnt.co.uk
tcnt.com.au
ctnt.net
cntt.ir

DNS History

22 records (10 active, 12 former)

NSans1.hostcocoa.comans2.hostcocoa.comans3.hostcocoa.comans4.hostcocoa.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comnb3vawab2ngiqurn7wcg22muoxz6vbk7n6tj7kksvyrfvcjbic3a.mx-verification.google.comA108.138.64.18108.138.64.28108.138.64.69108.138.64.953.166.49.43.166.49.473.166.49.523.166.49.73.169.252.1293.169.252.583.169.252.873.169.252.99
●NSans1.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●NSans2.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●NSans3.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●NSans4.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXalt1.aspmx.l.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXalt2.aspmx.l.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXalt3.aspmx.l.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXalt4.aspmx.l.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXaspmx.l.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
●MXnb3vawab2ngiqurn7wcg22muoxz6vbk7n6tj7kksvyrfvcjbic3a.mx-verification.google.com2026-02-15 → 2026-03-18 · 2 obs
● 2026-02-15 13:06:38
● 2026-03-18 14:34:46
○A108.138.64.182026-02-16 → 2026-02-23 · 18 obs
○ 2026-02-15 13:06:38
○ 2026-02-16 01:52:34
● 2026-02-16 20:49:16
● 2026-02-17 21:21:10
○ 2026-02-18 15:54:02
● 2026-02-19 03:46:38
● 2026-02-19 22:59:50
○ 2026-02-20 01:09:04
● 2026-02-20 01:42:48
○ 2026-02-20 02:14:40
● 2026-02-20 03:34:16
○ 2026-02-21 09:20:42
● 2026-02-21 14:38:04
○ 2026-02-21 22:32:28
● 2026-02-22 20:28:02
● 2026-02-23 22:01:16
○ 2026-02-24 00:51:02
○ 2026-03-18 14:34:46
○A108.138.64.282026-02-16 → 2026-02-23 · 18 obs
○ 2026-02-15 13:06:38
○ 2026-02-16 01:52:34
● 2026-02-16 20:49:16
● 2026-02-17 21:21:10
○ 2026-02-18 15:54:02
● 2026-02-19 03:46:38
● 2026-02-19 22:59:50
○ 2026-02-20 01:09:04
● 2026-02-20 01:42:48
○ 2026-02-20 02:14:40
● 2026-02-20 03:34:16
○ 2026-02-21 09:20:42
● 2026-02-21 14:38:04
○ 2026-02-21 22:32:28
● 2026-02-22 20:28:02
● 2026-02-23 22:01:16
○ 2026-02-24 00:51:02
○ 2026-03-18 14:34:46
○A108.138.64.692026-02-16 → 2026-02-23 · 18 obs
○ 2026-02-15 13:06:38
○ 2026-02-16 01:52:34
● 2026-02-16 20:49:16
● 2026-02-17 21:21:10
○ 2026-02-18 15:54:02
● 2026-02-19 03:46:38
● 2026-02-19 22:59:50
○ 2026-02-20 01:09:04
● 2026-02-20 01:42:48
○ 2026-02-20 02:14:40
● 2026-02-20 03:34:16
○ 2026-02-21 09:20:42
● 2026-02-21 14:38:04
○ 2026-02-21 22:32:28
● 2026-02-22 20:28:02
● 2026-02-23 22:01:16
○ 2026-02-24 00:51:02
○ 2026-03-18 14:34:46
○A108.138.64.952026-02-16 → 2026-02-23 · 18 obs
○ 2026-02-15 13:06:38
○ 2026-02-16 01:52:34
● 2026-02-16 20:49:16
● 2026-02-17 21:21:10
○ 2026-02-18 15:54:02
● 2026-02-19 03:46:38
● 2026-02-19 22:59:50
○ 2026-02-20 01:09:04
● 2026-02-20 01:42:48
○ 2026-02-20 02:14:40
● 2026-02-20 03:34:16
○ 2026-02-21 09:20:42
● 2026-02-21 14:38:04
○ 2026-02-21 22:32:28
● 2026-02-22 20:28:02
● 2026-02-23 22:01:16
○ 2026-02-24 00:51:02
○ 2026-03-18 14:34:46
○A3.166.49.42026-02-15 → 2026-03-01 · 15 obs
● 2026-02-15 13:06:38
● 2026-02-16 01:52:34
○ 2026-02-16 20:49:16
○ 2026-02-20 01:42:48
● 2026-02-20 02:14:40
○ 2026-02-20 03:34:16
● 2026-02-21 09:20:42
○ 2026-02-21 14:38:04
○ 2026-02-23 22:01:16
● 2026-02-24 00:51:02
● 2026-02-28 22:25:48
○ 2026-03-01 13:59:42
● 2026-03-01 15:49:54
○ 2026-03-02 01:34:40
○ 2026-03-18 14:34:46
○A3.166.49.472026-02-15 → 2026-03-01 · 15 obs
● 2026-02-15 13:06:38
● 2026-02-16 01:52:34
○ 2026-02-16 20:49:16
○ 2026-02-20 01:42:48
● 2026-02-20 02:14:40
○ 2026-02-20 03:34:16
● 2026-02-21 09:20:42
○ 2026-02-21 14:38:04
○ 2026-02-23 22:01:16
● 2026-02-24 00:51:02
● 2026-02-28 22:25:48
○ 2026-03-01 13:59:42
● 2026-03-01 15:49:54
○ 2026-03-02 01:34:40
○ 2026-03-18 14:34:46
○A3.166.49.522026-02-15 → 2026-03-01 · 15 obs
● 2026-02-15 13:06:38
● 2026-02-16 01:52:34
○ 2026-02-16 20:49:16
○ 2026-02-20 01:42:48
● 2026-02-20 02:14:40
○ 2026-02-20 03:34:16
● 2026-02-21 09:20:42
○ 2026-02-21 14:38:04
○ 2026-02-23 22:01:16
● 2026-02-24 00:51:02
● 2026-02-28 22:25:48
○ 2026-03-01 13:59:42
● 2026-03-01 15:49:54
○ 2026-03-02 01:34:40
○ 2026-03-18 14:34:46
○A3.166.49.72026-02-15 → 2026-03-01 · 15 obs
● 2026-02-15 13:06:38
● 2026-02-16 01:52:34
○ 2026-02-16 20:49:16
○ 2026-02-20 01:42:48
● 2026-02-20 02:14:40
○ 2026-02-20 03:34:16
● 2026-02-21 09:20:42
○ 2026-02-21 14:38:04
○ 2026-02-23 22:01:16
● 2026-02-24 00:51:02
● 2026-02-28 22:25:48
○ 2026-03-01 13:59:42
● 2026-03-01 15:49:54
○ 2026-03-02 01:34:40
○ 2026-03-18 14:34:46
○A3.169.252.1292026-02-18 → 2026-03-02 · 15 obs
○ 2026-02-17 21:21:10
● 2026-02-18 15:54:02
○ 2026-02-19 03:46:38
○ 2026-02-19 22:59:50
● 2026-02-20 01:09:04
○ 2026-02-20 01:42:48
○ 2026-02-21 14:38:04
● 2026-02-21 22:32:28
○ 2026-02-22 20:28:02
○ 2026-02-28 22:25:48
● 2026-03-01 13:59:42
○ 2026-03-01 15:49:54
● 2026-03-02 01:34:40
○ 2026-03-02 23:17:46
○ 2026-03-18 14:34:46
○A3.169.252.582026-02-18 → 2026-03-02 · 15 obs
○ 2026-02-17 21:21:10
● 2026-02-18 15:54:02
○ 2026-02-19 03:46:38
○ 2026-02-19 22:59:50
● 2026-02-20 01:09:04
○ 2026-02-20 01:42:48
○ 2026-02-21 14:38:04
● 2026-02-21 22:32:28
○ 2026-02-22 20:28:02
○ 2026-02-28 22:25:48
● 2026-03-01 13:59:42
○ 2026-03-01 15:49:54
● 2026-03-02 01:34:40
○ 2026-03-02 23:17:46
○ 2026-03-18 14:34:46
○A3.169.252.872026-02-18 → 2026-03-02 · 15 obs
○ 2026-02-17 21:21:10
● 2026-02-18 15:54:02
○ 2026-02-19 03:46:38
○ 2026-02-19 22:59:50
● 2026-02-20 01:09:04
○ 2026-02-20 01:42:48
○ 2026-02-21 14:38:04
● 2026-02-21 22:32:28
○ 2026-02-22 20:28:02
○ 2026-02-28 22:25:48
● 2026-03-01 13:59:42
○ 2026-03-01 15:49:54
● 2026-03-02 01:34:40
○ 2026-03-02 23:17:46
○ 2026-03-18 14:34:46
○A3.169.252.992026-02-18 → 2026-03-02 · 15 obs
○ 2026-02-17 21:21:10
● 2026-02-18 15:54:02
○ 2026-02-19 03:46:38
○ 2026-02-19 22:59:50
● 2026-02-20 01:09:04
○ 2026-02-20 01:42:48
○ 2026-02-21 14:38:04
● 2026-02-21 22:32:28
○ 2026-02-22 20:28:02
○ 2026-02-28 22:25:48
● 2026-03-01 13:59:42
○ 2026-03-01 15:49:54
● 2026-03-02 01:34:40
○ 2026-03-02 23:17:46
○ 2026-03-18 14:34:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krd.dns.kr, c.dns.kr, f.dns.kr, g.dns.kr...-
cttn.krans2.hostcocoa.com, ans1.hostcocoa.com, ans4.hostcocoa.com, ans3.hostcocoa.com-

✅ Authoritative Response

Server: 205.251.198.221

NS records: ans2.hostcocoa.com, ans1.hostcocoa.com, ans4.hostcocoa.com, ans3.hostcocoa.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cttn.kr (unsigned zone)

⏱️ Timing

Total: 885ms | Queries: -

📄 Records

TypeCountSample Data
NS4ans1.hostcocoa.com, ans2.hostcocoa.com...
MX6aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
SOA1ans1.hostcocoa.com awsdns-hostmaster.ama

Analysis

Name Servers

cttn.kr is delegated to four name servers: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com.

cttn.kr at least partially shares name servers with other domains, for example hectonproject.com, bogencutlery.com, dadamstore.kr, cillaw.com and tinydot.co.kr.

Host names with one IP number:

ans1.hostcocoa.com points to: 205.251.192.117

ans2.hostcocoa.com points to: 205.251.195.46

ans3.hostcocoa.com points to: 205.251.197.133

ans4.hostcocoa.com points to: 205.251.198.221

Mail Servers

cttn.kr is handled by six mail servers: aspmx.l.google.com, nb3vawab2ngiqurn7wcg22muoxz6vbk7n6tj7kksvyrfvcjbic3a.mx-verification.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

cttn.kr shares at least partially some mail servers with other domains, for instance varnaimot.com, ns500737.ns500737.ns500599.ns500737.ns500737.ns500724.ns500599.ns500599.ns500599.ns500724.ns500724.ns500724.ns500599.ns500599.ns500697.ns500682.ns500669.yummyflingsfinder.com, ns500754.ns500731.ns500731.ns500754.ns500754.ns500705.ns500705.ns500671.ns500705.ns500671.ns500678.ns500666.ns500291.ns500291.ns500131.lustychickser.com, ns500759.ns500698.ns500758.ns500698.ns500759.ns500735.ns500708.ns500698.ns500576.ns500619.ns500576.ns500576.ns500576.trackreceptor.com and ns500758.ns500698.ns500759.ns500758.ns500735.ns500736.ns500736.ns500735.ns500698.ns500735.ns500576.ns500708.ns500652.ns500652.trackreceptor.com.

these mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers

Each host name points to two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27