dhtf.kr - robtex.com
dhtf.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.139.49.7🇰🇷 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.web79.kr ⚠️ Not in zone NS records | ||||||
| A | 221.139.49.17🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns2.web79.kr ⚠️ Not in zone NS records | ||||||
| A | 121.125.73.38🇰🇷 SKB-NET121.125.0.0/16 SK Broadband | ||||||
| MX | mail.dhtf.kr ⭐ | ||||||
| A | 121.125.73.19🇰🇷 SKB-NET121.125.0.0/16 SK Broadband | ||||||
| TXT | v=spf1 ip4:218.237.67.247 ip4:121.125.73.53 ip4:218.237.67.249 ip4:218.237.67... | ||||||
| SOA | ns1.nurihosting.comsupport@nurihosting.com 2023-01-26 #1 | ||||||
kr
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2607220503 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.nurihosting.com2026-07-21 → 2026-07-21 · 2 obs
● 2026-07-21 22:30:16
●MXmail.dhtf.kr2026-07-21 → 2026-07-21 · 2 obs
● 2026-07-21 22:30:16
●A221.139.49.72026-07-21 → 2026-07-21 · 2 obs
● 2026-07-21 22:30:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | 10 records |
| dhtf.kr | ns1.web79.kr, ns2.web79.kr | 2 records |
✅ Authoritative Response
Server:221.139.49.17
NS records: ns1.web79.kr, ns2.web79.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dhtf.kr (unsigned zone)
⏱️ Timing
Total: 1129ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.139.49.7 |
| MX | 1 | mail.dhtf.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:218.237.67.247 ip4:121.125.73 |
| SOA | 1 | ns1.nurihosting.com support.nurihosting. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 10 (b.dns.kr, c.dns.kr, d.dns.kr...)
Out-of-bailiwick: 2 (ns2.web79.kr, ns1.web79.kr)
Analysis
IP Addresses
dhtf.kr resolves to just one IP address, 221.139.49.7.
Two other host names, along with www.1661-1403.com, hmandoo.com and besttech21.com, also share IP numbers with dhtf.kr.
Name Servers
Three name servers are authoritative for dhtf.kr: ns1.nurihosting.com, ns1.web79.kr and ns2.web79.kr.
At least some of dhtf.kr's name servers are shared with other domains, for example xn--o79aj6jzrillmylr.com, koreagauss.com, leeginam.com and two more.
These name servers tend to co-occur with ns2.nurihosting.com, ns1.aramschool.co.kr, ns1.bver.co.kr and 7 other name servers in the same DNS delegations.
Three hostnames, one IP address apiece: ns1.nurihosting.com resolves to 211.215.17.210, ns1.web79.kr resolves to 221.139.49.17 and ns2.web79.kr resolves to 121.125.73.38.
Mail Servers
The sole mail server for dhtf.kr is mail.dhtf.kr.
There is one IP number for mail.dhtf.kr: 121.125.73.19.