sungdo.hs.kr - robtex.com
sungdo.hs.kr
hs.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.krdomain-manager@nic.or.kr serial=2607190501 | ||||||
rank #70 in the tld
hs.kr
hs.kris a delegated second-level domain under South Korea's country-code TLD.kr, reserved for high schools (고등학교, godeunghakgyo). Individual schools register under it using the pattern
Key facts
- Owner / operator: Korea Internet & Security Agency (KISA), under the Ministry of Science and ICT
- TLD:
.kr— South Korea (ccTLD) - Primary purpose: Namespace for South Korean high schools; individual institutions register third-level domains
- Status: active
Notable subdomains or services
.hs.kr .ac.kr
Related domains
ac.kr— universities and collegesms.kr— middle schools (중학교)es.kr— elementary schools (초등학교)go.kr— South Korean government bodiesor.kr— non-profit organizations
Same first word
Similar names
DNS History
10 records (9 active, 1 former)
●MX4zdhcdfj52y475kxcfqll7tckucwfqsmidai52z7gysbfldi3c6a.mx-verification.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●MXalt1.aspmx.l.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●MXalt2.aspmx.l.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●MXalt3.aspmx.l.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●MXalt4.aspmx.l.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●MXaspmx.l.google.com2026-04-10 → 2026-07-18 · 2 obs
● 2026-07-18 20:52:22
●A211.182.236.1382026-04-10 → 2026-07-18 · 3 obs
● 2026-04-10 18:06:12
● 2026-07-18 20:52:22
○A211.182.236.1472015-05-20 → 2018-07-08 · 4 obs
● 2018-07-08 04:35:42
○ 2026-04-10 18:06:12
○ 2026-07-18 20:52:22
🔍 DNS Trace
Analysis
IP Addresses
sungdo.hs.kr has exactly one IP address — 211.182.236.138.
keonkuk.ms.kr, haewon.es.kr, gijang.hs.kr plus two other host names have IP numbers in common with sungdo.hs.kr.
Name Servers
DNS delegation for sungdo.hs.kr points to two name servers: ns1.pen.go.kr and ns2.pen.go.kr.
The name server configuration of sungdo.hs.kr is shared with other domains, for instance hangdo.ms.kr, hyenam.sc.kr, hyehwa.ms.kr and two others.
There is at least partial name server overlap between sungdo.hs.kr and other domains — psdongsung.hs.kr, daeyang.hs.kr, kjung.hs.kr and two more among them.
These name servers frequently co-occur with the name servers ns1.busanedu.net and ns2.busanedu.net.
Host names pointing to two IP addresses:
ns1.pen.go.kr has two IP addresses: 211.182.233.2 and 211.182.233.3.
Host names resolving to a single IP address:
ns2.pen.go.kr directs to 211.182.233.3.
Host names pointing to 211.182.233.3 IP addresses: ns1.pen.go.kr and ns2.pen.go.kr.
Mail Servers
sungdo.hs.kr accepts email via 6 mail servers: aspmx.l.google.com, 4zdhcdfj52y475kxcfqll7tckucwfqsmidai52z7gysbfldi3c6a.mx-verification.google.com, alt1.aspmx.l.google.com and 3 other.
At least some of the mail servers used by sungdo.hs.kr are shared with other domains: acninfra.com, thedavidb.com, sobbuilt.com and two others among them.
These mail servers are often deployed together with alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 4 other mail servers.
Host names pointing to two IP addresses:
aspmx.l.google.com has two IP addresses: 142.251.111.27 and 2607:f8b0:4004:c1b::1b.
alt1.aspmx.l.google.com has two IP addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com has two IP addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1a.