🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`kuc.or.kr`

DNSSEC	⚠️ Not signed
NS	`ns1.hosting.co.kr` ⭐
		A	121.254.170.11^{🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary}
NS	`ns2.hosting.co.kr`
		A	43.201.141.93^{🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix}
			PTR	`ec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com`
NS	`ns3.hosting.co.kr`
		A	121.254.170.12^{🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary}
NS	`ns4.hosting.co.kr`
		A	43.201.141.93^{🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix}
			PTR	`ec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com`
MX	`securemx01.mailplug.com` ⭐
		A	121.156.118.230^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
		A	121.156.118.237^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
		A	121.156.118.242^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
MX	`securemx02.mailplug.com`⁽²⁰⁾
		A	223.26.214.11^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
			PTR	`securemx02.mailplug.com`
		A	223.26.214.12^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
			PTR	`securemx02.mailplug.com`
TXT	`_globalsign-domain-verification=duB2wJeS8M9PuJcjhccbcatJvZYqLrQA6WAJres9QM`
TXT	`_globalsign-domain-verification=q16nuYplYOgfF1Pby_PyPaVjShBn9pSMVA0KG7jD_S`
TXT	`v=spf1 mx include:mailplug.com ~all`
TXT	`_globalsign-domain-verification=sAD8Rk5WxY1XWE0g9vqgFT9KMxuTCUaJwcL_agwb5F`
TXT	`_globalsign-domain-verification=RT2eYIZEq7JAoetWgdg3ObZOIOgdaB5pak8Z7Y3O_c`
SOA	`ns1.hosting.co.kr`admin@kuc.or.kr serial=199

`or.kr`

	DNSSEC	⚠️ Not signed
	NS	`g.dns.kr` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.kr` ⚠️ Not in parent delegation
	NS	`c.dns.kr` ⚠️ Not in parent delegation
	NS	`d.dns.kr` ⚠️ Not in parent delegation
	NS	`e.dns.kr` ⚠️ Not in parent delegation
	NS	`f.dns.kr` ⚠️ Not in parent delegation
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2610120545

📈 Tranco rank: #164,391
rank #345 globally
rank #1 in the tld

or.kr

or.kr is a second‑level domain under South Korea’s.krcountry code top‑level domain, used for registering non‑profit and non‑governmental organizations.

Key facts

Owner / operator: KISA (Korea Internet & Security Agency)
TLD:.kr— ccTLD for South Korea
Primary purpose: registry for non‑profit organizations (NGOs, charities, etc.)
Status: active (used as a second‑level namespace; the apex domain itself does not host a website)

WOT: UNKNOWN (41/100)

Subdomains

jeju.kuc.or.kr

www.kuc.or.kr

mail.kuc.or.kr

sekc.kuc.or.kr

Same first word

kuc.se

kuc.legal

kuc.sa

kuc.biz

kuc.us.com

kuc.uk

kuc.org

kuc.cn

kuc.world

kuc.info.pl

kuc.co.uk

kuc.ca

kuc.org.cn

kuc.ru

kuc.vc

kuc.co.id

kuc.hk

kuc.cz

kuc.info

kuc.org.ki

kuc.com.au

kuc.xyz

kuc.tm

kuc.dk

kuc.app

kuc.me

kuc.tokyo

kuc.workers.dev

kuc.co.jp

kuc.lt

kuc.com.br

kuc.be

kuc.eu

kuc.in

kuc.or.kr

kuc.ne.jp

kuc.fr

kuc.jp

kuc.ma

kuc.net.pl

kuc.now.sh

kuc.no

kuc.co

kuc.lol

kuc.edu.gh

kuc.com.pl

kuc.ro

kuc.wroclaw.pl

kuc.kr

kuc.us

kuc.org.pl

kuc.voyage

kuc.pages.dev

kuc.ch

kuc.es

kuc.tw

kuc.at

kuc.nl

kuc.com

kuc.net

kuc.ac.ke

kuc.myds.me

kuc.altervista.org

kuc.ph

kuc.ink

kuc.ir

kuc.de

kuc.vercel.app

kuc.si

kuc.org.au

kuc.net.cn

kuc.com.kw

kuc.io

kuc.sk

kuc.edu.az

Similar names

uck.no

kcu.pages.dev

cku.gt

uck.com.ph

cuk.us

cku.fr

kcu.ie

ukc.me

ukc.kr

uck.bet

uck.com.br

cku.co.jp

cuk.se

kcu.com

kcu.ai

cku.com

kcu.us.com

uck.ac.in

ukc.synology.me

uck.ir

uck.st

kcu.cn

cuk.be

cku.com.ua

cku.co.za

uck.su

ukc.workers.dev

ukc.de

ukc.mx

kcu.ac.ug

cuk.xyz

kcu.be

kcu.org

cuk.cn

ukc.com.br

cku.wodzislaw.pl

kcu.de

uck.mobi

cku.es

cku.com.hk

cku.edu.kg

ukc.eu

uck.pl

ukc.co.uk

uck.co.uk

uck.net

uck.cz

ukc.iq

ukc.be

uck.se

cuk.monster

uck.ing

uck.best

kcu.com.tr

cku.krakow.pl

cuk.ru

cuk.us.com

ukc.ca

ukc.rw

ukc.com

cku.dk

cku.gr

uck.com

ukc.xyz

cuk.workers.dev

uck.be

uck.fr

kcu.at

cuk.web.id

uck.moe

cku.at

ukc.company

kcu.com.kw

uck.org

cku.pl

cuk.info.pl

cku.sh

cuk.nu

ukc.rest

kcu.or.kr

ukc.fi

Previous names

kttaa.or.kr

kttc.or.kr

kttn.or.kr

ktts.or.kr

kttu.or.kr

ktu.or.kr

ktug.or.kr

ktvf.or.kr

ktw.or.kr

ktx.or.kr

ku.or.kr

kua.or.kr

kuaa.or.kr

kuaascholarship.or.kr

kuabestendoscopy.or.kr

kuac.or.kr

kubf.or.kr

kubi.or.kr

kubsa.or.kr

Next names

kuca.or.kr

kucar.or.kr

kucb.or.kr

kucc.or.kr

kucea.or.kr

kuceia.or.kr

kuco.or.kr

kucra.or.kr

kucre.or.kr

kucss.or.kr

kuda-korea.or.kr

kuda.or.kr

kue.or.kr

kuesa.or.kr

kuf.or.kr

kufa.or.kr

kufc.or.kr

kugyol.or.kr

kuh.or.kr

DNS History

8 records (6 active, 2 former)

●NSns1.hosting.co.kr2015-08-26 → 2026-10-12 · 21 obs

● 2015-08-26 19:38:02
● 2026-03-31 04:31:46
○ 2026-04-03 14:21:22
● 2026-04-05 08:50:46
○ 2026-04-08 22:37:14
● 2026-06-10 13:51:18
○ 2026-08-17 19:54:46
● 2026-08-17 21:56:12
○ 2026-08-28 04:05:58
● 2026-09-01 18:04:56
○ 2026-09-01 22:48:30
● 2026-09-06 08:26:22
○ 2026-09-06 09:44:20
● 2026-09-06 16:56:02
○ 2026-09-06 17:47:16
● 2026-09-07 10:34:34
○ 2026-09-07 11:21:18
● 2026-09-07 23:00:20
○ 2026-09-08 12:09:50
● 2026-09-10 03:18:46
● 2026-10-12 18:53:32

●NSns2.hosting.co.kr2015-08-26 → 2026-10-12 · 21 obs

●NSns3.hosting.co.kr2026-02-22 → 2026-10-12 · 22 obs

○ 2015-08-26 19:38:02
● 2026-02-22 07:18:36
● 2026-03-31 04:31:46
○ 2026-04-03 14:21:22
● 2026-04-05 08:50:46
○ 2026-04-08 22:37:14
● 2026-06-10 13:51:18
○ 2026-08-17 19:54:46
● 2026-08-17 21:56:12
○ 2026-08-28 04:05:58
● 2026-09-01 18:04:56
○ 2026-09-01 22:48:30
● 2026-09-06 08:26:22
○ 2026-09-06 09:44:20
● 2026-09-06 16:56:02
○ 2026-09-06 17:47:16
● 2026-09-07 10:34:34
○ 2026-09-07 11:21:18
● 2026-09-07 23:00:20
○ 2026-09-08 12:09:50
● 2026-09-10 03:18:46
● 2026-10-12 18:53:32

●NSns4.hosting.co.kr2026-02-22 → 2026-10-12 · 22 obs

○MXma175.mailplug.co.kr2015-08-26 → 2017-08-02 · 4 obs

● 2015-08-26 19:38:02
● 2017-08-02 15:21:50
○ 2026-02-22 07:18:36
○ 2026-10-12 18:53:32

●MXsecuremx01.mailplug.com2026-02-22 → 2026-10-12 · 14 obs

○ 2017-08-02 15:21:50
● 2026-02-22 07:18:36
● 2026-03-31 04:31:46
○ 2026-04-03 14:21:22
● 2026-04-05 08:50:46
○ 2026-04-08 22:37:14
● 2026-06-10 13:51:18
○ 2026-08-17 19:54:46
● 2026-08-17 21:56:12
○ 2026-08-18 09:40:24
● 2026-09-18 14:45:54
○ 2026-09-21 04:30:54
● 2026-09-28 03:32:56
● 2026-10-12 18:53:32

●MXsecuremx02.mailplug.com2026-02-22 → 2026-10-12 · 14 obs

○A175.126.232.1452015-08-26 → 2017-08-02 · 4 obs

● 2015-08-26 19:38:02
● 2017-08-02 15:21:50
○ 2026-02-22 07:18:36
○ 2026-10-12 18:53:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
kuc.or.kr	ns2.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr	-

✅ Authoritative Response

Server:121.254.170.11

NS records: ns2.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kuc.or.kr (unsigned zone)

⏱️ Timing

Total: 1989ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1.hosting.co.kr, ns2.hosting.co.kr...`
MX	2	`securemx01.mailplug.com (pri: 10), securemx02.mailplug.com (pri: 20)`
TXT	5	`_globalsign-domain-verification=duB2wJeS, _globalsign-domain-verification=q16nuYpl...`
SOA	1	`ns1.hosting.co.kr admin.kuc.or.kr`

Analysis

Hierarchy

kuc.or.kr has four subdomains: jeju.kuc.or.kr, www.kuc.or.kr, mail.kuc.or.kr and sekc.kuc.or.kr.

Name Servers

Four name servers handle the delegation for kuc.or.kr: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.

There is at least partial name server overlap between kuc.or.kr and other domains — midascdn.net, sungdang.co.kr, nanuro.com and two more among them.

Four hostnames each with a single A record: ns1.hosting.co.kr → 121.254.170.11, ns2.hosting.co.kr → 43.201.141.93, ns3.hosting.co.kr → 121.254.170.12, ns4.hosting.co.kr → 43.201.141.93. ns2.hosting.co.kr and ns4.hosting.co.kr both direct to 43.201.141.93.

These two host names — ns2.hosting.co.kr and ns4.hosting.co.kr — each point to 43.201.141.93 IP addresses.

Mail Servers

kuc.or.kr uses two mail servers, securemx01.mailplug.com and securemx02.mailplug.com.

The mail server setup of kuc.or.kr matches that of other domains such as iamhere.co.kr, huigang.kr, iforman.com and two others.

There is at least a partial overlap in mail servers between kuc.or.kr and other domains like wizshipping.net, samik21.com and gauiwon.kr.

Host names carrying three IP numbers:

securemx01.mailplug.com resolves to three addresses: 121.156.118.230, 121.156.118.237 and 121.156.118.242.

Host names pointing to two IP addresses:

securemx02.mailplug.com maps to two IP addresses — 223.26.214.11 and 223.26.214.12.

kuc.or.kr - robtex.com

kuc.or.kr

or.kr

or.kr

Key facts

Subdomains

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

Name Servers

Mail Servers

`kuc.or.kr`

`or.kr`