cfc.kr - robtex.com
cfc.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.138.106.141🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns1.ksdom.kr ⭐ | ||||||
| A | 180.68.206.142🇰🇷 SKB-NET180.68.0.0/16 auto-generated route object for 180.68.0.0/16 | ||||||
| NS | ns2.ksdom.kr | ||||||
| A | 219.251.156.131🇰🇷 GDNSKR-KR219.251.156.0/24 AS23600 | ||||||
| MX | mail.cfc.kr ⭐ | ||||||
| A | 221.138.106.141🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| TXT | google-site-verification=4az_PKAvtYXC2IU7u6svKxBmlyL6ZLqKBs8F0U5B6Tk | ||||||
| SOA | ns1.ksdom.krdomain@ksdom.kr 2014-12-16 #61 | ||||||
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=2606171008 | ||||||
Subdomains
mail.cfc.kr |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.cfc.kr2026-02-16 → 2026-06-17 · 2 obs
● 2026-06-17 16:12:30
●A221.138.106.1412026-02-16 → 2026-06-17 · 2 obs
● 2026-06-17 16:12:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, d.dns.kr, f.dns.kr, e.dns.kr... | - |
| cfc.kr | ns2.ksdom.kr, ns1.ksdom.kr | 2 records |
✅ Authoritative Response
Server:219.251.156.131
NS records: ns2.ksdom.kr, ns1.ksdom.kr
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cfc.kr: Error: DNS query timeout: 210.101.60.1 for DS cfc.kr
⏱️ Timing
Total: 3795ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.138.106.141 |
| NS | 2 | ns2.ksdom.kr, ns1.ksdom.kr |
| MX | 1 | mail.cfc.kr (pri: 0) |
| TXT | 1 | google-site-verification=4az_PKAvtYXC2IU |
| SOA | 1 | ns1.ksdom.kr domain.ksdom.kr |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.ksdom.kr, ns1.ksdom.kr)
Analysis
Hierarchy
mail.cfc.kr is a subdomain of cfc.kr.
IP Addresses
cfc.kr resolves to just one IP address, 221.138.106.141.
Two other host names, along with mail.cfc.kr, www.nocr.net and hangl.net, also share IP numbers with cfc.kr.
Name Servers
cfc.kr is delegated to two name servers: ns1.ksdom.kr and ns2.ksdom.kr.
cfc.kr shares its NS records with other domains, for example pentachord.com, cdata.co.kr, enif.kr and two others.
cfc.kr has overlapping name servers with several other domains — among them rolanddp.com, lamercoco.com, lsproxy.com and sebangchain.com.
Both ns1.ksdom.kr and ns2.ksdom.kr have a single IP address each — ns1.ksdom.kr resolves to 180.68.206.142 while ns2.ksdom.kr resolves to 219.251.156.131.
Mail Servers
The sole mail server for cfc.kr is mail.cfc.kr.
mail.cfc.kr resolves to a single IP number: 221.138.106.141.