firstch.kr - dns.ninja
firstch.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 112.175.92.56🇰🇷 KT-NET112.168.0.0/13 | ||||||
| NS | ns1.withsystems.co.kr ⭐ | ||||||
| A | 121.189.8.153🇰🇷 KT-NET121.184.0.0/13 | ||||||
| NS | ns2.withsystems.co.kr | ||||||
| A | 61.96.208.227🇰🇷 MAINT-AS945761.96.128.0/17 REACH (Customer Route) | ||||||
| PTR | ns2.withsystems.co.kr | ||||||
| SOA | ns1.withsystems.co.krroot@withsystems.co.kr 2014-11-28 #12 | ||||||
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=2607131051 | ||||||
Same first word
Similar names
DNS History
4 records (3 active, 1 former)
●NSns1.withsystems.co.kr2015-08-12 → 2026-07-13 · 2 obs
● 2026-07-13 16:27:44
●NSns2.withsystems.co.kr2015-08-12 → 2026-07-13 · 2 obs
● 2026-07-13 16:27:44
●A112.175.92.562026-03-04 → 2026-07-13 · 3 obs
● 2026-03-04 12:57:40
● 2026-07-13 16:27:44
○A112.175.92.572015-08-12 → 2017-04-05 · 4 obs
● 2017-04-05 23:13:06
○ 2026-03-04 12:57:40
○ 2026-07-13 16:27:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr... | - |
| firstch.kr | ns2.withsystems.co.kr, ns1.withsystems.co.kr | - |
✅ Authoritative Response
Server:61.96.208.227
NS records: ns2.withsystems.co.kr, ns1.withsystems.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstch.kr (unsigned zone)
⏱️ Timing
Total: 4344ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 112.175.92.56 |
| NS | 2 | ns1.withsystems.co.kr, ns2.withsystems.co.kr |
| SOA | 1 | ns1.withsystems.co.kr root.withsystems.c |
Analysis
IP Addresses
firstch.kr has exactly one IP address — 112.175.92.56.
funchurch.net, youngshin.tv, trioncorp.com plus two other host names have IP numbers in common with firstch.kr.
Name Servers
Two name servers handle the delegation for firstch.kr: ns1.withsystems.co.kr and ns2.withsystems.co.kr.
The name server configuration of firstch.kr is shared with other domains, for instance fgbp.org, igoodnews.tv, ngach.org and two others.
firstch.kr has name servers in common with a number of other domains — dasarang.org, withsystems.co.kr, seokang.or.kr and cmmk.or.kr among them.
These name servers are routinely deployed together with the name servers ns3.withsystems.co.kr.
ns1.withsystems.co.kr → 121.189.8.153 and ns2.withsystems.co.kr → 61.96.208.227: one IP number per host name.