`mail.contacko.com`

	DNSSEC	⚠️ Not signed
	A	121.189.61.156^{🇰🇷 KT-NET121.184.0.0/13}

`contacko.com`

	DNSSEC	⚠️ Not signed
	A	183.110.224.246^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
	NS	`contacko.com` ⭐
	NS	`ns.cafe24.com`
	NS	`ns1.cafe24.co.kr` ⚠️ Not in zone NS records
	NS	`ns1.cafe24.com` ⚠️ Not in parent delegation
	NS	`ns2.cafe24.co.kr` ⚠️ Not in zone NS records
	NS	`ns2.cafe24.com` ⚠️ Not in zone NS records
	MX	`mail.contacko.com` ⭐
	TXT	`v=spf1 v=spf1 include:_spf1.mailnara.co.kr include:_spf2.mailnara.co.kr inclu...`
	SOA	`contacko.com`postmaster@contacko.com 2005-12-19 #1

MX for

contacko.com

Same first word

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DNS History

2 records (1 active, 1 former)

●A121.189.61.1562015-08-14 → 2026-03-28 · 3 obs

○ 2007-11-30 09:10:40
● 2015-08-14 08:19:22
● 2026-03-28 18:41:50

○A61.109.252.222007-11-30 → 2007-11-30 · 3 obs

● 2007-11-30 09:10:40
○ 2015-08-14 08:19:22
○ 2026-03-28 18:41:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
contacko.com	ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr	9 records

✅ Authoritative Response

Server:1.226.85.4

NS records: ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contacko.com (unsigned zone)

⏱️ Timing

Total: 1301ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.189.61.156`

📌 Glue Records Collected

Total: 9

Out-of-bailiwick: 9 (ns2.cafe24.com, ns2.cafe24.com, ns2.cafe24.com...)

Analysis

Mail Server Role

mail.contacko.com serves as the mail server for contacko.com.

IP Addresses

mail.contacko.com points to a single IP: 121.189.61.156.

Other host names, for instance mail.sports2i.com, mail.hydrosta.com, mail.geni-pco.com, mail.younghofa.com and mail.chocomom.com share IP numbers with mail.contacko.com.

mail.contacko.com - robtex.com