etracon.com - dns.ninja

`etracon.com`

DNSSEC	⚠️ Not signed
A	222.122.39.13^{🇰🇷 KT-NET222.122.0.0/16 Korea Telecom, Seoul, Korea}
NS	`etracon.com` ⭐
		A	222.122.39.13^{🇰🇷 KT-NET222.122.0.0/16 Korea Telecom, Seoul, Korea}
NS	`ns.21th.co.kr` ⚠️ Not in zone NS records
		A	218.145.65.143^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns.etracon.com` ⚠️ Not in parent delegation
		A	218.145.65.143^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns1.21th.co.kr` ⚠️ Not in zone NS records
		A	116.126.143.226^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns1.etracon.com` ⚠️ Not in parent delegation
		A	116.126.143.226^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns2.21th.co.kr` ⚠️ Not in zone NS records
		A	218.145.65.144^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns2.etracon.com` ⚠️ Not in parent delegation
		A	218.145.65.144^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns3.21th.co.kr` ⚠️ Not in zone NS records
		A	116.126.143.225^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns3.etracon.com` ⚠️ Not in parent delegation
		A	116.126.143.225^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
MX	`mail.gobizmail.com` ⭐
		A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
		A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-223-25-84.compute-1.amazonaws.com`
		A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-243-117-197.compute-1.amazonaws.com`
TXT	`v=spf1 ip4:211.119.134.196 ~all`
SOA	`etracon.com`postmaster@etracon.com serial=20121109

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1782697920

NS for

etracon.com

Subdomains

mail.etracon.com

ns.etracon.com

ns1.etracon.com

ns3.etracon.com

Same first word

etracon.de

etracon.com

etracon.co.kr

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DNS History

15 records (11 active, 4 former)

●NSetracon.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

●NSns.21th.co.kr2026-02-21 → 2026-06-29 · 3 obs

○ 2015-06-21 15:08:36
● 2026-02-21 04:29:00
● 2026-06-29 02:11:30

●NSns.etracon.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

○NSns.gabia.co.kr2007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 06:15:30
○ 2015-06-21 15:08:36
○ 2026-06-29 02:11:30

●NSns1.21th.co.kr2026-02-21 → 2026-06-29 · 3 obs

○ 2015-06-21 15:08:36
● 2026-02-21 04:29:00
● 2026-06-29 02:11:30

●NSns1.etracon.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

○NSns1.gabia.co.kr2007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 06:15:30
○ 2015-06-21 15:08:36
○ 2026-06-29 02:11:30

●NSns2.21th.co.kr2026-02-21 → 2026-06-29 · 3 obs

○ 2015-06-21 15:08:36
● 2026-02-21 04:29:00
● 2026-06-29 02:11:30

●NSns2.etracon.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

●NSns3.21th.co.kr2026-02-21 → 2026-06-29 · 3 obs

○ 2015-06-21 15:08:36
● 2026-02-21 04:29:00
● 2026-06-29 02:11:30

●NSns3.etracon.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

○MXmail.etracon.com2007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 06:15:30
○ 2015-06-21 15:08:36
○ 2026-06-29 02:11:30

●MXmail.gobizmail.com2015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

○A211.43.212.1842007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 06:15:30
○ 2015-06-21 15:08:36
○ 2026-06-29 02:11:30

●A222.122.39.132015-06-21 → 2026-06-29 · 3 obs

○ 2007-11-15 06:15:30
● 2015-06-21 15:08:36
● 2026-06-29 02:11:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...	-
etracon.com	ns.21th.co.kr, ns1.21th.co.kr, ns2.21th.co.kr, ns3.21th.co.kr	-

✅ Authoritative Response

Server:116.126.143.225

NS records: ns.21th.co.kr, ns1.21th.co.kr, ns2.21th.co.kr, ns3.21th.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for etracon.com (unsigned zone)

⏱️ Timing

Total: 4300ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.122.39.13`
NS	4	`ns.etracon.com, ns1.etracon.com...`
MX	1	`mail.gobizmail.com (pri: 10)`
TXT	1	`v=spf1 ip4:211.119.134.196 ~all`
SOA	1	`etracon.com postmaster.etracon.com`

Analysis

Hierarchy

etracon.com has four subdomains: mail.etracon.com, ns.etracon.com, ns1.etracon.com and ns3.etracon.com.

Name Server Role

etracon.com acts as a name server for etracon.com, meaning it is self-referentially delegated.

etracon.com is commonly paired with ns1.etracon.com, ns2.etracon.com and ns3.etracon.com to act as name servers.

IP Addresses

etracon.com resolves to one IP address: 222.122.39.13.

smartnm.com, hcem.co.kr, sjlift.net and two other host names share IP numbers with etracon.com.

Name Servers

etracon.com carries NS delegation across 9 name servers — etracon.com, ns1.etracon.com, ns2.etracon.com and 6 other.

There is at least partial name server overlap between etracon.com and other domains — wooshinentech.com, seoulstar.net, iyeralra.com and two more among them.

These name servers regularly appear alongside ns1.21th.co.kr, ns.21th.co.kr, ns2.21th.co.kr and 7 other name servers in NS record sets.

Hosts with just one IP address:

etracon.com points to the IP address 222.122.39.13.

ns1.etracon.com points to the IP address 116.126.143.226.

ns2.etracon.com points to the IP address 218.145.65.144.

ns3.etracon.com points to the IP address 116.126.143.225.

ns.etracon.com points to the IP address 218.145.65.143.

ns1.21th.co.kr points to the IP address 116.126.143.226.

ns2.21th.co.kr points to the IP address 218.145.65.144.

ns3.21th.co.kr points to the IP address 116.126.143.225.

ns.21th.co.kr points to the IP address 218.145.65.143.

These two host names — ns1.etracon.com and ns1.21th.co.kr — each point to 116.126.143.226 IP addresses.

These two host names — ns2.etracon.com and ns2.21th.co.kr — each point to 218.145.65.144 IP addresses.

These two host names — ns3.etracon.com and ns3.21th.co.kr — each point to 116.126.143.225 IP addresses.

These two host names — ns.etracon.com and ns.21th.co.kr — each point to 218.145.65.143 IP addresses.

Mail Servers

Mail for etracon.com is handled by a single mail server, mail.gobizmail.com.

etracon.com uses an identical mail server configuration to several other domains — among them vccorp.co.kr, zlepang.com, leetek.org and two more.

etracon.com has at least partial mail server overlap with other domains such as imseonoc.com, ikta.co.kr, yenare.com and two more.

mail.gobizmail.com has four IP addresses: 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.