btnhcorp.com - robtex.com
btnhcorp.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.sdsns.com ⭐ | ||||||
| A | 211.115.203.112🇰🇷 HOSTWAY-AS-KR211.115.203.0/24 SejongTelecom.co.ltd | ||||||
| NS | ns2.sdsns.com | ||||||
| A | 211.239.157.110🇰🇷 HOSTWAY-AS-KR211.239.157.0/24 SejongTelecom.co.ltd | ||||||
| MX | mail.btnhcorp.com ⭐ | ||||||
| A | 121.189.61.152🇰🇷 KT-NET121.184.0.0/13 | ||||||
| TXT | v=spf1 include:_spf1.mailnara.co.kr include:_spf2.mailnara.co.kr include:_spf... | ||||||
| SOA | ns1.sdsns.comnameserver@sds.co.kr 2010-07-26 #10 | ||||||
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=1774611462 | ||||||
Subdomains
mail.btnhcorp.com |
Same first word
btnhcorp.com |
Similar names
DNS History
3 records (3 active, 0 former)
●MXmail.btnhcorp.com2015-08-17 → 2026-03-27 · 2 obs
● 2026-03-27 11:38:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net... | - |
| btnhcorp.com | ns1.sdsns.com, ns2.sdsns.com | 2 records |
✅ Authoritative Response
Server:211.239.157.110
NS records: ns1.sdsns.com, ns2.sdsns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btnhcorp.com (unsigned zone)
⏱️ Timing
Total: 704ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.sdsns.com, ns2.sdsns.com |
| MX | 1 | mail.btnhcorp.com (pri: 10) |
| TXT | 1 | v=spf1 include:_spf1.mailnara.co.kr incl |
| SOA | 1 | ns1.sdsns.com nameserver.sds.co.kr |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.sdsns.com, ns2.sdsns.com)
Analysis
Hierarchy
btnhcorp.com is a parent of mail.btnhcorp.com.
Name Servers
btnhcorp.com is delegated to two name servers: ns1.sdsns.com and ns2.sdsns.com.
btnhcorp.com uses the same name server setup as other domains, including unistnd.co.kr, iwsco.co.kr, specsvision.com, ibuddha.tv and linkbase.co.kr.
At least part of the name servers for btnhcorp.com are shared with other domains, for instance patinex.org, soulgy.com, technic-kr.com, jm-i.com and sdsns.com.
These name servers are commonly used alongside ns1.direct.co.kr and ns2.direct.co.kr.
Hostnames with a single IP
ns1.sdsns.com resolves to: 211.115.203.112.
ns2.sdsns.com resolves to: 211.239.157.110.
Mail Servers
The mail server for btnhcorp.com is mail.btnhcorp.com.
Host mail.btnhcorp.com points to IP 121.189.61.152.