`o5.co.kr`

DNSSEC	⚠️ Not signed
A	221.143.48.198^{🇰🇷 SKB-NET221.140.0.0/14 SK Broadband}
		PTR	`221-143-48-198.tongkni.co.kr`
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`
SOA	`ns1.hosting.co.kr`admin@o5.co.kr serial=5

`co.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=2604290703

WOT: UNKNOWN (62/100)

Same first word

o5.ru

o5.com

o5.github.io

o5.cz

o5.org

o5.de

o5.no

o5.co.kr

o5.eu

o5.by

o5.vc

o5.be

o5.cn

o5.pl

o5.sk

o5.net.cn

o5.kz

o5.co.at

o5.com.ua

o5.su

o5.gg

o5.cl

o5.fr

o5.hu

o5.co.uk

Similar names

5o.de

5o.cc

5o.cn

5o.com.br

5o.eu

5o.sk

5o.be

5o.se

5o.lt

5o.ws

5o.nl

5o.no

5o.dk

5o.au

5o.com

DNS History

8 records (5 active, 3 former)

○NSns1.gaja79.com2015-11-10 → 2017-02-24 · 4 obs

● 2015-11-10 03:56:10
● 2017-02-24 05:07:46
○ 2026-03-02 08:30:44
○ 2026-04-29 05:04:08

●NSns1.hosting.co.kr2026-03-02 → 2026-04-29 · 3 obs

○ 2017-02-24 05:07:46
● 2026-03-02 08:30:44
● 2026-04-29 05:04:08

●NSns2.hosting.co.kr2026-03-02 → 2026-04-29 · 3 obs

○ 2017-02-24 05:07:46
● 2026-03-02 08:30:44
● 2026-04-29 05:04:08

●NSns3.hosting.co.kr2026-03-02 → 2026-04-29 · 3 obs

○ 2017-02-24 05:07:46
● 2026-03-02 08:30:44
● 2026-04-29 05:04:08

●NSns4.hosting.co.kr2026-03-02 → 2026-04-29 · 3 obs

○ 2017-02-24 05:07:46
● 2026-03-02 08:30:44
● 2026-04-29 05:04:08

○MXns1.gaja79.com2015-11-10 → 2017-02-24 · 4 obs

● 2015-11-10 03:56:10
● 2017-02-24 05:07:46
○ 2026-03-02 08:30:44
○ 2026-04-29 05:04:08

○A110.45.160.2202015-11-10 → 2017-02-24 · 4 obs

● 2015-11-10 03:56:10
● 2017-02-24 05:07:46
○ 2026-03-02 08:30:44
○ 2026-04-29 05:04:08

●A221.143.48.1982026-03-02 → 2026-04-29 · 3 obs

○ 2017-02-24 05:07:46
● 2026-03-02 08:30:44
● 2026-04-29 05:04:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
o5.co.kr	ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr, ns4.hosting.co.kr	4 records

✅ Authoritative Response

Server:43.201.141.93

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o5.co.kr (unsigned zone)

⏱️ Timing

Total: 1114ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`221.143.48.198`
NS	4	`ns3.hosting.co.kr, ns1.hosting.co.kr...`
SOA	1	`ns1.hosting.co.kr admin.o5.co.kr`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr...)

Analysis

IP Addresses

o5.co.kr resolves to one IP number: 221.143.48.198.

other host names including ns.jjanggu.kr, www.jjanggu.kr, waa.co.kr, ggo.co.kr and jjanggu.kr share IP numbers with o5.co.kr.

Name Servers

o5.co.kr is delegated to four name servers: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.

o5.co.kr at least partially shares name servers with other domains, for instance bacolns.com, citynet.kr, microbiome.org, cxolab.org and carcares.co.kr.