sdgate.co.kr - robtex.com
sdgate.co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 222.231.25.56🇰🇷 DACOM-NET222.231.0.0/18 contact noc@bora.net if necessary | ||||||
| PTR | web3.koreafree.co.kr | ||||||
| NS | ns1.koreafree.co.kr ⭐ | ||||||
| A | 121.254.171.112🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| NS | ns1.whoiskorea.co.kr | ||||||
| A | 121.254.171.111🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| MX | mail.sdgate.co.kr ⭐ | ||||||
| A | 222.231.25.56🇰🇷 DACOM-NET222.231.0.0/18 contact noc@bora.net if necessary | ||||||
| PTR | web3.koreafree.co.kr | ||||||
| TXT | v=spf1 ip4:222.231.25.56 ~all | ||||||
| SOA | ns1.koreafree.co.krwebmaster@koreafree.co.kr 2011-02-21 #9 | ||||||
co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | g.dns.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | c.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | d.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | e.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | f.dns.kr ⚠️ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2604140599 | ||||||
Subdomains
mail.sdgate.co.kr |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.koreafree.co.kr2026-04-02 → 2026-04-14 · 2 obs
● 2026-04-14 02:28:04
●NSns1.whoiskorea.co.kr2026-04-02 → 2026-04-14 · 2 obs
● 2026-04-14 02:28:04
●MXmail.sdgate.co.kr2026-04-02 → 2026-04-14 · 2 obs
● 2026-04-14 02:28:04
●A222.231.25.562026-04-02 → 2026-04-14 · 2 obs
● 2026-04-14 02:28:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | f.dns.kr, d.dns.kr, c.dns.kr, b.dns.kr... | - |
| sdgate.co.kr | ns1.whoiskorea.co.kr, ns1.koreafree.co.kr | 2 records |
✅ Authoritative Response
Server:121.254.171.112
NS records: ns1.whoiskorea.co.kr, ns1.koreafree.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sdgate.co.kr (unsigned zone)
⏱️ Timing
Total: 1001ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 222.231.25.56 |
| NS | 2 | ns1.whoiskorea.co.kr, ns1.koreafree.co.kr |
| MX | 1 | mail.sdgate.co.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:222.231.25.56 ~all |
| SOA | 1 | ns1.koreafree.co.kr webmaster.koreafree. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.whoiskorea.co.kr, ns1.koreafree.co.kr)
Analysis
Hierarchy
sdgate.co.kr is the parent of mail.sdgate.co.kr.
IP Addresses
sdgate.co.kr resolves to one IP number: 222.231.25.56.
other host names including raoncat.co.kr, mail.cleanpc.co.kr, mail.rs-korea.com, meatmall.net and qupit.net share IP numbers with sdgate.co.kr.
Name Servers
sdgate.co.kr is delegated to two name servers ns1.koreafree.co.kr and ns1.whoiskorea.co.kr.
sdgate.co.kr shares the same name server setup as other domains, for instance xn--2j1bx47aoiluf.com, onjob.co.kr, calvarychapel.or.kr, krcma.co.kr and ssisanews.com.
sdgate.co.kr at least partially shares name servers with other domains, for instance backjeemt.com, comad21.com, hcyc.kr and shinwoojin.com.
these name servers are commonly used alongside ns2.whoiskorea.co.kr.
Host names with one IP number:
ns1.koreafree.co.kr points to 121.254.171.112
ns1.whoiskorea.co.kr points to 121.254.171.111
Mail Servers
sdgate.co.kr is handled by a single mail server, mail.sdgate.co.kr.
mail.sdgate.co.kr resolves to IP 222.231.25.56.