`duke3.com`

DNSSEC	⚠️ Not signed
A	220.73.172.110^{🇰🇷 KT-NET220.72.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns1.duke3.com` ⭐
NS	`ns1.addinfotech.co.kr`
		A	49.247.172.147^{🇰🇷 SMILESERV-AS-KR49.247.128.0/17}
NS	`ns2.addinfotech.co.kr`
		A	49.247.29.107^{🇰🇷 SMILESERV-AS-KR49.247.0.0/17 Proxy-Registered Route Object by LGUPLUS(AS3786)}
SOA	`ns1.duke3.com`admin@duke3.com serial=4

`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=1786104969

Same first word

duke3.net

duke3.com

Similar names

3duke.com

eduk3.ir

DNS History

5 records (4 active, 1 former)

●NSns1.addinfotech.co.kr2015-08-20 → 2026-08-07 · 2 obs

● 2015-08-20 00:12:22
● 2026-08-07 12:37:48

●NSns1.duke3.com2026-04-15 → 2026-08-07 · 3 obs

○ 2017-03-27 18:57:50
● 2026-04-15 09:49:14
● 2026-08-07 12:37:48

●NSns2.addinfotech.co.kr2015-08-20 → 2026-08-07 · 5 obs

● 2015-08-20 00:12:22
○ 2015-12-20 17:32:00
○ 2017-03-27 18:57:50
● 2026-04-15 09:49:14
● 2026-08-07 12:37:48

●A220.73.172.1102026-04-15 → 2026-08-07 · 3 obs

○ 2017-03-27 18:57:50
● 2026-04-15 09:49:14
● 2026-08-07 12:37:48

○A220.73.172.1122015-08-20 → 2017-03-27 · 4 obs

● 2015-08-20 00:12:22
● 2017-03-27 18:57:50
○ 2026-04-15 09:49:14
○ 2026-08-07 12:37:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
duke3.com	ns2.addinfotech.co.kr, ns1.addinfotech.co.kr	-

✅ Authoritative Response

Server:49.247.29.107

NS records: ns2.addinfotech.co.kr, ns1.addinfotech.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duke3.com (unsigned zone)

⏱️ Timing

Total: 1063ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.73.172.110`
NS	2	`ns2.addinfotech.co.kr, ns1.addinfotech.co.kr`
SOA	1	`ns1.duke3.com admin.duke3.com`

Analysis

IP Addresses

duke3.com resolves to just one IP address, 220.73.172.110.

Two other host names, along with addinfotech.co.kr, sejinschool.com and edush.net, also share IP numbers with duke3.com.

Name Servers

Three name servers are authoritative for duke3.com: ns1.duke3.com, ns1.addinfotech.co.kr and ns2.addinfotech.co.kr.

The name servers of duke3.com overlap at least partially with those of other domains — among them kangssam.com, hakwonsarang.com, skyacademy.co.kr and two more.

These name servers commonly appear in delegations together with ns.gabia.net, ns1.kangssam.com, ns1.hakwonsarang.com and 5 other.

Both ns1.addinfotech.co.kr and ns2.addinfotech.co.kr have a single IP address each — ns1.addinfotech.co.kr resolves to 49.247.172.147 while ns2.addinfotech.co.kr resolves to 49.247.29.107.

duke3.com - robtex.com

duke3.com

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