`principlesofknowledge.kr`

DNSSEC	⚠️ Not signed
A	121.78.251.17^{🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net}
NS	`ns1.ssandom.com` ⭐
		A	182.161.122.88^{🇰🇷 KOREACENTER-AS-KR182.161.122.0/24 CMI (Customer Route)}
			PTR	`182-161-122-servers.makeshop.co.kr`
NS	`ns2.ssandom.com`
		A	121.78.207.105^{🇰🇷 KINXIDC-AS-KR121.78.192.0/18 KINX-Net}
SOA	`ns1.ssandom.com`root@ssandom.com 2025-12-27 #0

`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=2604130849

Subdomains

www.principlesofknowledge.kr

Same first word

principlesofknowledge.com

principlesofknowledge.kr

DNS History

4 records (3 active, 1 former)

●NSns1.ssandom.com2017-06-06 → 2026-04-13 · 2 obs

● 2017-06-06 20:44:36
● 2026-04-13 08:52:06

●NSns2.ssandom.com2017-06-06 → 2026-04-13 · 2 obs

● 2017-06-06 20:44:36
● 2026-04-13 08:52:06

●A121.78.251.172026-02-18 → 2026-04-13 · 3 obs

○ 2017-06-06 20:44:36
● 2026-02-18 03:02:52
● 2026-04-13 08:52:06

○A218.238.66.2452017-06-06 → 2017-06-06 · 3 obs

● 2017-06-06 20:44:36
○ 2026-02-18 03:02:52
○ 2026-04-13 08:52:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, g.dns.kr, d.dns.kr, e.dns.kr...	-
principlesofknowledge.kr	ns1.ssandom.com, ns2.ssandom.com	-

✅ Authoritative Response

Server:182.161.122.88

NS records: ns1.ssandom.com, ns2.ssandom.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for principlesofknowledge.kr (unsigned zone)

⏱️ Timing

Total: 1370ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.78.251.17`
NS	2	`ns1.ssandom.com, ns2.ssandom.com`
SOA	1	`ns1.ssandom.com root.ssandom.com`

Analysis

Hierarchy

principlesofknowledge.kr is the parent of www.principlesofknowledge.kr.

IP Addresses

principlesofknowledge.kr resolves to a single IP: 121.78.251.17.

Other host names, for instance soim.kr, brz.co.kr, coffice.kr, sidmool.name and coachinggroupsystem.com share IP numbers with principlesofknowledge.kr.

Name Servers

principlesofknowledge.kr has two name servers: ns1.ssandom.com and ns2.ssandom.com.

principlesofknowledge.kr shares the same name server setup as other domains, for example gaja.co.kr, ktics.co.kr, jvcmall.com, ccgu.ac.kr and minminfood.com.

principlesofknowledge.kr shares some name servers with other domains, for example bz.co.kr, fashiontoday.co.kr, vfvf.co.kr, toktok.com and prq.co.kr.

Host names with a single IP:

ns1.ssandom.com points to 182.161.122.88

ns2.ssandom.com points to 121.78.207.105

principlesofknowledge.kr - robtex.com