firstcoding.kr - dns.ninja
firstcoding.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.146.253.146🇰🇷 KT-NET121.144.0.0/13 | ||||||
| NS | ns1.hosting.co.kr ⭐ | ||||||
| A | 121.254.170.11 | ||||||
| NS | ns2.hosting.co.kr | ||||||
| A | 43.201.141.93 | ||||||
| NS | ns3.hosting.co.kr | ||||||
| A | 121.254.170.12 | ||||||
| NS | ns4.hosting.co.kr | ||||||
| A | 43.201.141.93 | ||||||
| MX | mail.firstcoding.kr ⭐ | ||||||
| TXT | v=spf1 ip4:121.146.253.146 -all | ||||||
| SOA | ns1.hosting.co.kradmin@firstcoding.kr serial=194 | ||||||
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=2610170650 | ||||||
Same first word
Similar names
nordicgifts.se |
nordicgifts.no |
softgridinc.com |
codingfirst.cn |
nordicgifts.ee |
nordicgifts.co.uk |
codingfirst.org |
nordicgifts.eu |
nordicgifts.dk |
nordicgifts.uk |
codingfirst.kr |
giftsnordic.com |
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NSns1.hosting.co.kr2026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
●NSns2.hosting.co.kr2026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
●NSns3.hosting.co.kr2026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
●NSns4.hosting.co.kr2026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
●MXmail.firstcoding.kr2026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
●A121.146.253.1462026-09-13 → 2026-10-17 · 4 obs
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 06:42:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | - |
| firstcoding.kr | albert.ns.cloudflare.com, colette.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.194.28
NS records: albert.ns.cloudflare.com, colette.ns.cloudflare.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at firstcoding.kr: Error: DNS query timeout: 210.101.60.1 for DS firstcoding.kr
⏱️ Timing
Total: 4218ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.146.253.146 |
| NS | 2 | albert.ns.cloudflare.com, colette.ns.cloudflare.com |
| MX | 3 | route3.mx.cloudflare.net (pri: 24), route1.mx.cloudflare.net (pri: 46)... |
| TXT | 1 | v=spf1 include:_spf.mx.cloudflare.net ~a |
| SOA | 1 | albert.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
firstcoding.kr resolves to just one IP address, 121.146.253.146.
Among the host names that share IP numbers with firstcoding.kr is xn--o39a40g9ua465b7mf.kr, as one example.
Name Servers
The NS records for firstcoding.kr point to four name servers: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.
firstcoding.kr partially shares its NS delegation with several other domains, including hamschicken.com, soocho.com, psyinwr.com and two others.
The host names ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr each point to one IP number: ns1.hosting.co.kr points to 121.254.170.11. ns2.hosting.co.kr points to 43.201.141.93. ns3.hosting.co.kr points to 121.254.170.12. ns4.hosting.co.kr points to 43.201.141.93.
ns2.hosting.co.kr and ns4.hosting.co.kr each have 43.201.141.93 IP addresses.
Mail Servers
The sole mail server for firstcoding.kr is mail.firstcoding.kr.