sjst.kr - robtex.com
sjst.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.139.49.13🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns1.nurihosting.com ⭐ | ||||||
| A | 211.215.17.210🇰🇷 SKB-NET211.212.0.0/14 SK Broadband | ||||||
| NS | ns1.adwinkorea.kr ⚠️ Not in zone NS records | ||||||
| A | 221.139.49.17🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns2.adwinkorea.kr ⚠️ Not in zone NS records | ||||||
| A | 121.125.73.38🇰🇷 SKB-NET121.125.0.0/16 SK Broadband | ||||||
| MX | mail.sjst.kr ⭐ | ||||||
| A | 221.139.49.13🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| TXT | v=spf1 ip4:221.139.49.3 ip4:221.139.49.4 ip4:221.139.49.13 ~all | ||||||
| SOA | ns1.nurihosting.comsupport@nurihosting.com 2023-01-26 #1 | ||||||
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=2610140511 | ||||||
Subdomains
mail.sjst.kr |
Same first word
sjst.kr |
sjst.cn |
sjst.org |
sjst.co.uk |
sjst.jp |
sjst.pages.dev |
sjst.net |
sjst.com.cn |
sjst.com |
sjst.co |
sjst.net.ph |
sjst.pl |
sjst.cc |
sjst.de |
sjst.ru |
Similar names
Previous names
sjs.kr |
sjsa.kr |
sjsafety.kr |
sjsdbc.kr |
sjsdental.kr |
sjse.kr |
sjseniorclub.kr |
sjseonjin.kr |
sjservice.kr |
sjsh.kr |
sjshop.kr |
sjshoping.kr |
sjsm.kr |
sjsmc.kr |
sjsnr.kr |
sjsoft.kr |
sjsports.kr |
sjsportsall.kr |
Next names
sjstudio.kr |
sjsw.kr |
sjtc.kr |
sjtec.kr |
sjtennis.kr |
sjti.kr |
sjtiger.kr |
sjtl.kr |
sjtour.kr |
sjtrading.kr |
sjtree.kr |
sjtv.kr |
sju.kr |
sjumbo.kr |
sjv.kr |
sjvillage.kr |
sjw.kr |
sjwaste.kr |
sjwaxing.kr |
sjwcorp.kr |
DNS History
6 records (5 active, 1 former)
●NSns1.adwinkorea.kr2026-07-02 → 2026-10-13 · 2 obs
● 2026-10-13 22:11:32
●NSns1.nurihosting.com2026-07-02 → 2026-10-13 · 2 obs
● 2026-10-13 22:11:32
●NSns2.adwinkorea.kr2026-07-02 → 2026-10-13 · 2 obs
● 2026-10-13 22:11:32
●MXmail.sjst.kr2026-07-02 → 2026-10-13 · 2 obs
● 2026-10-13 22:11:32
●A221.139.49.132026-07-02 → 2026-10-13 · 2 obs
● 2026-10-13 22:11:32
○A221.139.49.42026-07-02 → 2026-10-13 · 2 obs
○ 2026-10-13 22:11:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr... | - |
| sjst.kr | ns1.adwinkorea.kr, ns2.adwinkorea.kr | 2 records |
✅ Authoritative Response
Server:121.125.73.38
NS records: ns1.adwinkorea.kr, ns2.adwinkorea.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sjst.kr (unsigned zone)
⏱️ Timing
Total: 1011ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.139.49.13 |
| MX | 1 | mail.sjst.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:221.139.49.3 ip4:221.139.49. |
| SOA | 1 | ns1.nurihosting.com support.nurihosting. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.adwinkorea.kr, ns1.adwinkorea.kr)
Analysis
Hierarchy
The domain mail.sjst.kr falls under the parent sjst.kr.
IP Addresses
sjst.kr points to a single IP number: 221.139.49.13.
Additional host names — mail.anywc.com, mail.hangajok.co.kr, mtd88.com and two others — share IP numbers with sjst.kr.
Name Servers
sjst.kr is served by three name servers: ns1.nurihosting.com, ns1.adwinkorea.kr and ns2.adwinkorea.kr.
At least some of sjst.kr's name servers are shared with other domains, for example eruarch.com, iyonwoo.com, sge.kr and two more.
These name servers tend to co-occur with ns2.nurihosting.com, ns1.aramschool.co.kr, ns1.web79.kr and 3 other name servers in the same DNS delegations.
ns1.nurihosting.com has IP address 211.215.17.210, ns1.adwinkorea.kr has IP address 221.139.49.17 and ns2.adwinkorea.kr has IP address 121.125.73.38 — one address each.
Mail Servers
sjst.kr has one mail server: mail.sjst.kr.
mail.sjst.kr resolves to 221.139.49.13 and no other IP number.