`science21.kr`

DNSSEC	⚠️ Not signed
A	180.210.82.141^{🇰🇷 NHN-AS-KR180.210.82.0/24 SKBroadbnad's coustemr route}
		PTR	`dmz-saas-web-82-141-php-82.godomall.com`
NS	`sns1.nsgodo.com` ⭐ ⚠️ Not in parent delegation
		A	180.210.127.111^{🇰🇷 NHN-AS-KR180.210.127.0/24 SKBroadbnad's coustemr route}
		A	211.233.50.3^{🇰🇷 NHN-AS-KR211.233.50.0/25}
			PTR	`ns1.nsgodo.com`
		A	211.233.50.4^{🇰🇷 NHN-AS-KR211.233.50.0/25}
			PTR	`ns2.nsgodo.com`
NS	`nsgodo.com` ⚠️ Not in zone NS records
		A	180.210.127.111^{🇰🇷 NHN-AS-KR180.210.127.0/24 SKBroadbnad's coustemr route}
		A	211.233.50.3^{🇰🇷 NHN-AS-KR211.233.50.0/25}
			PTR	`ns1.nsgodo.com`
		A	211.233.50.4^{🇰🇷 NHN-AS-KR211.233.50.0/25}
			PTR	`ns2.nsgodo.com`
NS	`nsgodo.net` ⚠️ Not in zone NS records
		A	121.254.254.3^{🇰🇷 NHN-AS-KR121.254.254.0/25}
			PTR	`vline-254-254-3.godo.co.kr`
		A	211.233.51.3^{🇰🇷 NHN-AS-KR211.233.51.0/25}
			PTR	`vline-51-3.godo.co.kr`
NS	`sns2.nsgodo.com` ⚠️ Not in parent delegation
		A	121.254.254.3^{🇰🇷 NHN-AS-KR121.254.254.0/25}
			PTR	`vline-254-254-3.godo.co.kr`
		A	180.210.127.113^{🇰🇷 NHN-AS-KR180.210.127.0/24 SKBroadbnad's coustemr route}
		A	211.233.51.3^{🇰🇷 NHN-AS-KR211.233.51.0/25}
			PTR	`vline-51-3.godo.co.kr`
MX	`webmail.science21.kr` ⭐
TXT	`v=spf1 ip4:180.210.82.141 ~all`
SOA	`sns1.nsgodo.com`science21@kr.science21.kr 2026-04-29 #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=2605150935

Same first word

science21.kr

science21.cz

Similar names

21science.com

DNS History

10 records (6 active, 4 former)

○NSns1.hostbell.com2015-07-23 → 2016-08-26 · 4 obs

● 2015-07-23 03:05:12
● 2016-08-26 07:14:04
○ 2017-04-06 01:28:24
○ 2026-05-15 15:03:12

○NSns1.nsgodo.com2015-07-23 → 2016-08-26 · 4 obs

● 2015-07-23 03:05:12
● 2016-08-26 07:14:04
○ 2017-04-06 01:28:24
○ 2026-05-15 15:03:12

○NSns2.nsgodo.com2015-07-23 → 2016-08-26 · 4 obs

● 2015-07-23 03:05:12
● 2016-08-26 07:14:04
○ 2017-04-06 01:28:24
○ 2026-05-15 15:03:12

●NSnsgodo.com2026-05-12 → 2026-05-15 · 3 obs

○ 2017-04-06 01:28:24
● 2026-05-12 04:24:12
● 2026-05-15 15:03:12

●NSnsgodo.net2026-05-12 → 2026-05-15 · 3 obs

○ 2017-04-06 01:28:24
● 2026-05-12 04:24:12
● 2026-05-15 15:03:12

●NSsns1.nsgodo.com2017-04-06 → 2026-05-15 · 3 obs

○ 2016-08-26 07:14:04
● 2017-04-06 01:28:24
● 2026-05-15 15:03:12

●NSsns2.nsgodo.com2017-04-06 → 2026-05-15 · 3 obs

○ 2016-08-26 07:14:04
● 2017-04-06 01:28:24
● 2026-05-15 15:03:12

●MXwebmail.science21.kr2015-07-23 → 2026-05-15 · 2 obs

● 2015-07-23 03:05:12
● 2026-05-15 15:03:12

●A180.210.82.1412026-05-12 → 2026-05-15 · 3 obs

○ 2017-04-06 01:28:24
● 2026-05-12 04:24:12
● 2026-05-15 15:03:12

○A211.233.50.2222015-07-23 → 2017-04-06 · 4 obs

● 2015-07-23 03:05:12
● 2017-04-06 01:28:24
○ 2026-05-12 04:24:12
○ 2026-05-15 15:03:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	f.dns.kr, g.dns.kr, d.dns.kr, e.dns.kr	-
science21.kr	nsgodo.com, nsgodo.net	-

✅ Authoritative Response

Server:211.233.51.3

NS records: nsgodo.com, nsgodo.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for science21.kr (unsigned zone)

⏱️ Timing

Total: 1558ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`180.210.82.141`
NS	2	`sns1.nsgodo.com, sns2.nsgodo.com`
MX	1	`webmail.science21.kr (pri: 10)`
TXT	1	`v=spf1 ip4:180.210.82.141 ~all`
SOA	1	`sns1.nsgodo.com science21.kr.science21.k`

Analysis

IP Addresses

science21.kr points to a single IP number: 180.210.82.141.

Other host names, for instance dreametechkorea.com, dmz-saas-web-82-141-php-82.godomall.com, srbook.co.kr, kr.dreametech.com and mpcnc.net share IP numbers with science21.kr.

Name Servers

science21.kr is delegated to four name servers: nsgodo.com, nsgodo.net, sns1.nsgodo.com and sns2.nsgodo.com.

science21.kr at least partially shares name servers with other domains, for instance serimfood.net, sasum9.com, misos.co.kr, bskimchi.co.kr and gagug.com.