sejongst.com - robtex.com
sejongst.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.111.169.123🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM | ||||||
| NS | ns3.dnszi.com ⭐ | ||||||
| A | 121.78.251.20🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns18.dnszi.com | ||||||
| A | 121.78.72.36🇰🇷 KINXIDC-AS-KR121.78.72.0/24 KINX-IDC | ||||||
| PTR | ns18.dnszi.com | ||||||
| NS | ns51.dnszi.com | ||||||
| A | 27.1.16.81🇰🇷 DAOU-AS-KR27.1.16.0/22 DAOU Tech | ||||||
| PTR | ns51.dnszi.com | ||||||
| NS | ns62.dnszi.com ⚠️ Not in parent delegation | ||||||
| A | 58.120.225.167🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| PTR | ns62.dnszi.com | ||||||
| NS | ns74.dnszi.com ⚠️ Not in parent delegation | ||||||
| A | 121.78.251.26🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| MX | mail.sejongst.com ⭐ | ||||||
| A | 61.100.184.78🇰🇷 HOSTWAY-AS-KR61.100.184.0/24 | ||||||
| SOA | ns3.dnszi.comroot@dnszi.com 2023-08-16 #9 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776202047 | ||||||
Previously NS for
sejongst.com |
Subdomains
mail.sejongst.com |
Same first word
sejongst.com |
DNS History
10 records (7 active, 3 former)
○NSns.gagabox.com2015-05-27 → 2021-01-09 · 4 obs
● 2021-01-09 06:26:32
○ 2026-04-04 23:46:54
○ 2026-04-14 21:52:50
●NSns18.dnszi.com2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 23:46:54
● 2026-04-14 21:52:50
○NSns2.gagabox.com2015-05-27 → 2021-01-09 · 4 obs
● 2021-01-09 06:26:32
○ 2026-04-04 23:46:54
○ 2026-04-14 21:52:50
●NSns3.dnszi.com2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 23:46:54
● 2026-04-14 21:52:50
●NSns51.dnszi.com2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 23:46:54
● 2026-04-14 21:52:50
●NSns62.dnszi.com2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 23:46:54
● 2026-04-14 21:52:50
●NSns74.dnszi.com2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 23:46:54
● 2026-04-14 21:52:50
○NSsejongst.com2015-05-27 → 2021-01-09 · 4 obs
● 2021-01-09 06:26:32
○ 2026-04-04 23:46:54
○ 2026-04-14 21:52:50
●MXmail.sejongst.com2015-05-27 → 2026-04-14 · 2 obs
● 2026-04-14 21:52:50
●A183.111.169.1232015-05-27 → 2026-04-14 · 2 obs
● 2026-04-14 21:52:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sejongst.com | ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com | 3 records |
✅ Authoritative Response
Server:121.78.251.20
NS records: ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sejongst.com (unsigned zone)
⏱️ Timing
Total: 528ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.111.169.123 |
| NS | 5 | ns3.dnszi.com, ns51.dnszi.com... |
| MX | 1 | mail.sejongst.com (pri: 10) |
| SOA | 1 | ns3.dnszi.com root.dnszi.com |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com)
Analysis
Hierarchy
The parent of mail.sejongst.com is sejongst.com.
IP Addresses
sejongst.com points to a single IP address: 183.111.169.123.
Other host names such as hanteckorea.com, esjst.co.kr, hanteckorea.co.kr, sprayhose.co.kr and esjst.com share IPs with sejongst.com.
Name Servers
sejongst.com is delegated to five name servers: ns18.dnszi.com, ns3.dnszi.com, ns51.dnszi.com, ns62.dnszi.com and ns74.dnszi.com.
sejongst.com at least partially shares name servers with other domains, for example koreanosteoporosis.or.kr, samone.net, kimkwangseok.co.kr, drcreamy.com and meshpot.com.
Host names with one IP number:
ns18.dnszi.com points to 121.78.72.36
ns3.dnszi.com points to 121.78.251.20
ns51.dnszi.com points to 27.1.16.81
ns62.dnszi.com points to 58.120.225.167
ns74.dnszi.com points to 121.78.251.26
Mail Servers
The mail.sejongst.com mail server handles sejongst.com.
mail.sejongst.com points to a single IP number: 61.100.184.78.