`gnu.kr`

DNSSEC	⚠️ Not signed
NS	`ns.gnu.ac.kr` ⭐ ⚠️ Not in zone NS records
		A	203.255.1.26^{🇰🇷 GSNU-AS-KR203.255.0.0/18 Proxy-Registered Route Object by LG Dacom(AS3786)}
NS	`ns2.kornet.net` ⚠️ Not in zone NS records
		A	211.216.50.160^{🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom}
SOA	`ns.gnu.ac.kr`root@ns.gnu.ac.kr 2023-08-09 #20

`kr`

	DNSSEC	🔒 Signed (DS record present)
	NS	`g.dns.kr` ⭐
	NS	`b.dns.kr`
	NS	`c.dns.kr`
	NS	`d.dns.kr`
	NS	`e.dns.kr`
	NS	`f.dns.kr`
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2607130935

Subdomains

webmail.gnu.kr

nongae.gnu.kr

mail.gnu.kr

eb-ncrc.gnu.kr

Same first word

gnu.io

gnu.kim

gnu.si

gnu.ca

gnu.xyz

gnu.info

gnu.net

gnu.org.il

gnu.org.pe

gnu.ae

gnu.pt

gnu.cz

gnu.be

gnu.org.ve

gnu.es

gnu.ac.kr

gnu.me

gnu.org.ua

gnu.lt

gnu.se

gnu.kr

gnu.works

gnu.dk

gnu.org

gnu.fr

gnu.life

gnu.co.kr

gnu.org.uk

gnu.style

gnu.de

gnu.moe

gnu.cn

gnu.team

gnu.in

gnu.systems

gnu.jp

gnu.so

gnu.org.ru

gnu.mx

gnu.com

gnu.li

gnu.idv.tw

gnu.gov.ly

gnu.nl

gnu.in-berlin.de

gnu.asia

gnu.cat

gnu.fun

gnu.nu

gnu.la

gnu.ro

gnu.email

gnu.su

gnu.com.au

gnu.party

gnu.org.pl

gnu.sk

gnu.com.br

gnu.gl

gnu.fi

gnu.hu

gnu.us

gnu.org.in

gnu.gr

gnu.kz

gnu.at

gnu.im

gnu.ch

gnu.support

gnu.cc

gnu.ac.in

gnu.pl

gnu.cl

gnu.co

Similar names

nug.cafe

gun.io

ung.com.ua

ung.info

ngu.ru

nug.university

ugn.at

nug.training

ngu.idv.tw

ngu.it

nug.business

gun.gallery

ngu.jp

ngu.io

gun.net

ugn.de

nug.gold

gun.la

gun.deals

ngu.me

gun.life

ung.de

gun.co.uk

gun.de

ngu.co.jp

gun.az

ngu.edu.so

nug.holdings

nug.com

ngu.fr

gun.exchange

ung.in.ua

nug.technology

ugn.info

nug.school

gun.fun

ung.fr

gun.ch

ung.br

nug.eu

gun.pl

gun.broker

gun.toys

nug.financial

ung.tv

gun.web.id

nug.(0x787878)

nug.web.id

ngu.finance

gun.lviv.ua

ung.si

ugn.cc

ngu.co.za

gun.jp

ugn.ca

ung.co.za

gun.eco

ung.asia

ugn.es

nug.com.au

gun.ru

nug.email

ung.am

ugn.be

gun.dog

ung.io

nug.co.kr

ung.ru

nug.express

ngu.cz

nug.tv

ngu.eu

nug.company

nug.lv

ngu.com

ngu.ca

gun.training

nug.productions

gun.company

ugn.co

nug.tips

ung.me

gun.ai

gun.club

nug.media

gun.lu

nug.ch

ngu.gov.ua

gun.ca

gun.at

nug.ir

nug.enterprises

ngu.su

gun.cash

gun.ro

ung.ch

ung.fm

gun.zone

ugn.eu

gun.wtf

gun.run

gun.tv

gun.center

ngu.edu.ge

ung.nl

ugn.com.mx

nug.guru

ung.kz

ung.stockholm

ugn.me

nug.house

ngu.edu.eg

nug.world

nug.net

ngu.de

gun.care

gun.av.tr

ngu.my

nug.bg

ugn.it

ngu.si

ung.ca

gun.cz

ngu.in

gun.eu.com

nug.town

ngu.dk

ung.com.au

nug.guide

gun.fm

nug.education

ugn.ac.id

gun.si

nug.org

gun.technology

ung.biz

nug.support

ngu.no

nug.finance

gun.info

ngu.nl

ung.ag

nug.tax

gun.ie

ugn.kr

DNS History

8 records (2 active, 6 former)

●NSns.gnu.ac.kr2018-09-21 → 2026-07-13 · 3 obs

○ 2017-01-23 05:57:54
● 2018-09-21 21:38:54
● 2026-07-13 12:19:38

○NSns.gsnu.ac.kr2015-07-15 → 2017-01-23 · 4 obs

● 2015-07-15 01:35:18
● 2017-01-23 05:57:54
○ 2018-09-21 21:38:54
○ 2026-07-13 12:19:38

●NSns2.kornet.net2026-02-28 → 2026-07-13 · 3 obs

○ 2018-09-21 21:38:54
● 2026-02-28 11:17:50
● 2026-07-13 12:19:38

○MXgmx51.mailplug.com2026-02-28 → 2026-07-08 · 24 obs

○ 2018-09-21 21:38:54
● 2026-02-28 11:17:50
○ 2026-03-10 03:06:44
○ 2026-03-17 04:44:32
● 2026-03-17 21:54:20
○ 2026-03-25 02:40:04
○ 2026-03-31 11:52:48
● 2026-04-15 18:29:08
○ 2026-04-25 21:42:32
● 2026-04-30 01:00:16
○ 2026-05-06 10:48:16
○ 2026-05-10 15:09:00
● 2026-05-15 03:22:14
● 2026-05-21 02:16:58
○ 2026-05-31 01:40:30
○ 2026-06-10 02:08:14
● 2026-06-11 04:16:56
○ 2026-06-11 11:06:02
● 2026-06-14 21:16:38
● 2026-06-17 20:46:00
○ 2026-06-17 23:36:18
● 2026-07-08 09:19:44
○ 2026-07-10 11:35:08
○ 2026-07-13 12:19:38

○MXspam.gnu.kr2015-07-15 → 2018-09-21 · 4 obs

● 2015-07-15 01:35:18
● 2018-09-21 21:38:54
○ 2026-02-28 11:17:50
○ 2026-07-13 12:19:38

○MXzmx908.mailplug.com2026-02-28 → 2026-07-08 · 24 obs

○A103.55.189.1992026-03-10 → 2026-07-08 · 28 obs

○ 2026-02-28 11:17:50
● 2026-03-10 03:06:44
● 2026-03-17 04:44:32
○ 2026-03-17 21:54:20
○ 2026-03-27 00:47:30
● 2026-03-31 11:52:48
● 2026-04-15 18:29:08
○ 2026-04-25 21:42:32
○ 2026-04-30 01:00:16
● 2026-05-06 10:48:16
● 2026-05-09 18:46:38
○ 2026-05-09 19:52:22
○ 2026-05-10 07:04:32
● 2026-05-10 15:09:00
○ 2026-05-15 03:22:14
● 2026-05-21 02:16:58
● 2026-05-31 01:40:30
○ 2026-06-10 02:08:14
● 2026-06-11 04:16:56
○ 2026-06-11 11:06:02
● 2026-06-14 21:16:38
○ 2026-06-14 22:07:58
○ 2026-06-17 11:42:04
● 2026-06-17 20:46:00
○ 2026-06-17 23:36:18
● 2026-07-08 09:19:44
○ 2026-07-10 11:35:08
○ 2026-07-13 12:19:38

○A203.255.1.252015-07-15 → 2018-09-21 · 4 obs

● 2015-07-15 01:35:18
● 2018-09-21 21:38:54
○ 2026-02-28 11:17:50
○ 2026-07-13 12:19:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
gnu.kr	ns.gnu.ac.kr, ns2.kornet.net	-

✅ Authoritative Response

Server:211.216.50.160

NS records: ns.gnu.ac.kr, ns2.kornet.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gnu.kr (unsigned zone)

⏱️ Timing

Total: 2744ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.55.189.199`
MX	2	`gmx51.mailplug.com (pri: 10), zmx908.mailplug.com (pri: 10)`
TXT	1	`v=spf1 ip4:202.30.55.51 ip4:202.30.55.50`
SOA	1	`ns.gnu.ac.kr root.ns.gnu.ac.kr`

Analysis

Hierarchy

gnu.kr is the parent domain of webmail.gnu.kr, nongae.gnu.kr, mail.gnu.kr and eb-ncrc.gnu.kr.

Name Servers

gnu.kr uses two name servers for its delegation: ns2.kornet.net and ns.gnu.ac.kr.

gnu.kr has the same name server configuration as other domains like gsnu.ac.kr and gnu.ac.kr.

gnu.kr shares at least some of its name servers with other domains, including humaxdigital.com, kfisac.org, kofiu.go.kr and two others.

These name servers are frequently seen alongside the name servers ns.kornet.net, ns1.gnu.ac.kr, ns.hite-jinro.com and ns2.kornet.ne.kr.

ns2.kornet.net and ns.gnu.ac.kr each resolve to one IP number: ns2.kornet.net points to 211.216.50.160 and ns.gnu.ac.kr points to 203.255.1.26.

gnu.kr - robtex.com

gnu.kr

kr