sedu.kr - robtex.com
sedu.kr
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.krdomain-manager@nic.or.kr serial=2608070530 | ||||||
Same first word
Similar names
DNS History
11 records (11 active, 0 former)
●NSns1.hosting.co.kr2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●NSns2.hosting.co.kr2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●NSns3.hosting.co.kr2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●NSns4.hosting.co.kr2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●MXalt1.aspmx.l.google.com2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●MXalt2.aspmx.l.google.com2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●MXalt3.aspmx.l.google.com2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●MXalt4.aspmx.l.google.com2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●MXaspmx.l.google.com2026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●A75.2.85.422026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
●A99.83.196.712026-08-06 → 2026-08-07 · 2 obs
● 2026-08-07 00:07:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, g.dns.kr, f.dns.kr, e.dns.kr... | - |
| sedu.kr | ns3.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns2.hosting.co.kr | - |
✅ Authoritative Response
Server:121.254.170.12
NS records: ns3.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns2.hosting.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sedu.kr (unsigned zone)
⏱️ Timing
Total: 1756ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 99.83.196.71, 75.2.85.42 |
| NS | 4 | ns4.hosting.co.kr, ns1.hosting.co.kr... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt4.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=yeJgzhOzzzrWsWe |
| SOA | 1 | ns1.hosting.co.kr admin.sedu.kr |
Analysis
IP Addresses
sedu.kr directs to two IP numbers, 75.2.85.42 and 99.83.196.71
Among the host names that share IP numbers with sedu.kr are onlinehp.co.kr, nah.kr, mkg.kr and two others.
Name Servers
The domain sedu.kr is delegated to these four name servers: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.
sedu.kr shares at least some of its name servers with other domains, including centersports.com, samhwag.co.kr, rogalsky.com and two others.
These name servers are frequently seen alongside the name servers dns1.maxion.co.kr.
ns1.hosting.co.kr points to 121.254.170.11. ns2.hosting.co.kr and ns4.hosting.co.kr both point to 43.201.141.93. ns3.hosting.co.kr points to 121.254.170.12. All four hosts — ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr — have one IP address each.
The host names ns2.hosting.co.kr and ns4.hosting.co.kr both resolve to 43.201.141.93 IP addresses.
Mail Servers
Mail for sedu.kr is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
sedu.kr shares at least some of its mail servers with other domains — for example ns500768.ns500759.ns500698.ns500758.ns500698.ns500698.ns500735.ns500736.ns500698.ns500708.ns500686.ns500619.ns500619.ns500576.trackreceptor.com, ns500599.ns500599.ns500599.ns500737.ns500724.ns500599.ns500737.ns500724.ns500697.ns500682.ns500583.www.yummyflingsfinder.com, farinelliconstruction.com and two more.
It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.
Hosts with two IP numbers each:
aspmx.l.google.com resolves to 173.194.45.27 and 2607:f8b0:4004:c1f::1a.
alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.