`challengerkorea.com`

DNSSEC	⚠️ Not signed
A	183.111.139.225^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
A	183.111.139.228^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
A	203.245.12.112^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
A	203.245.12.127^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`challengerkorea.com` ⭐
		A	183.111.139.225^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
		A	183.111.139.228^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
		A	203.245.12.112^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
		A	203.245.12.127^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`dns1.cafe24.co.kr` ⚠️ Not in zone NS records
		A	112.175.246.228^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.246.229^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.132^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.133^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`dns1.cafe24.com` ⚠️ Not in zone NS records
		A	112.175.246.226^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.246.227^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.130^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.131^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`dns2.cafe24.co.kr` ⚠️ Not in zone NS records
		A	112.175.247.228^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.247.229^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.142^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.143^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`dns2.cafe24.com` ⚠️ Not in zone NS records
		A	112.175.247.226^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.247.227^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.140^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.141^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns1.cafe24.co.kr` ⚠️ Not in parent delegation
		A	112.175.246.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`gjit.kr`
			PTR	`snoweb.kr`
			PTR	`sinc2030.co.kr`
		A	112.175.246.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.136^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.137^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns1.cafe24.com` ⚠️ Not in parent delegation
		A	112.175.246.230^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-246-230.defastlink.net`
		A	112.175.246.231^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-246-231.defastlink.net`
		A	116.126.143.242^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
			PTR	`ip-116-126-143-242.defastlink.net`
		A	175.125.93.134^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
			PTR	`ip-175-125-93-134.defastlink.net`
		A	175.125.93.135^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
			PTR	`ip-175-125-93-135.defastlink.net`
NS	`ns2.cafe24.co.kr` ⚠️ Not in parent delegation
		A	112.175.247.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`snoweb.kr`
			PTR	`sarchi.co.kr`
		A	112.175.247.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.146^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.147^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns2.cafe24.com` ⚠️ Not in parent delegation
		A	1.226.85.4^{🇰🇷 SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13}
			PTR	`ip-1-226-85-4.defastlink.net`
		A	1.234.0.4^{🇰🇷 SKB-NET1.232.0.0/13 auto-generated route object for 1.232.0.0/13}
			PTR	`ip-1-234-0-4.defastlink.net`
		A	112.175.11.4^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-11-4.defastlink.net`
		A	112.175.12.4^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-12-4.defastlink.net`
MX	`mw-002.cafe24.com` ⭐
		A	211.34.104.38^{🇰🇷 KT-NET211.34.104.0/24}
			PTR	`mw-002.cafe24.com`
SOA	`challengerkorea.com`postmaster@challengerkorea.com serial=20211006

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

NS for

challengerkorea.com

Same first word

challengerkorea.com

DNS History

14 records (14 active, 0 former)

●NSchallengerkorea.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSdns1.cafe24.co.kr2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSdns1.cafe24.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSdns2.cafe24.co.kr2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSdns2.cafe24.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSns1.cafe24.co.kr2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSns1.cafe24.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSns2.cafe24.co.kr2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●NSns2.cafe24.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●MXmw-002.cafe24.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●A183.111.139.2252026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●A183.111.139.2282026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●A203.245.12.1122026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

●A203.245.12.1272026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 04:06:34
● 2026-03-23 07:48:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net...	-
challengerkorea.com	dns1.cafe24.com, dns2.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.co.kr	8 records

✅ Authoritative Response

Server:112.175.246.226

NS records: dns1.cafe24.com, dns2.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for challengerkorea.com (unsigned zone)

⏱️ Timing

Total: 4403ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`203.245.12.112, 183.111.139.228...`
NS	4	`ns2.cafe24.co.kr, ns2.cafe24.com...`
MX	1	`mw-002.cafe24.com (pri: 10)`
SOA	1	`challengerkorea.com postmaster.challenge`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (dns1.cafe24.com, dns1.cafe24.com, dns1.cafe24.com...)

Analysis

Name Server Role

challengerkorea.com serves as a name server for challengerkorea.com.

dns1.cafe24.com, dns2.cafe24.com and ns1.cafe24.com commonly serve as name servers alongside challengerkorea.com.

IP Addresses

challengerkorea.com maps to four IP numbers: 183.111.139.225, 183.111.139.228, 203.245.12.112 and 203.245.12.127.

Other host names, for instance under5.co.kr, lifecity.kr, egmshop.com, loveloveme.com and disongbeni.com share IP numbers with challengerkorea.com.

Name Servers

challengerkorea.com is delegated to nine name servers: challengerkorea.com, dns1.cafe24.com, dns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.co.kr, ns1.cafe24.co.kr and ns2.cafe24.co.kr.

challengerkorea.com at least partially shares name servers with other domains such as komoonsa.co.kr, talent-a.com, highloop.co.kr, pure9station.com and saehyun-tech.co.kr.

These name servers are commonly used with ns.cafe24.com and ns0.cafe24.com.

Host names with five IP numbers:

The host name ns1.cafe24.com points to: 112.175.246.230, 112.175.246.231, 116.126.143.242, 175.125.93.134 and 175.125.93.135.

Host names with four IP numbers:

The host name challengerkorea.com points to: 183.111.139.225, 183.111.139.228, 203.245.12.112 and 203.245.12.127.

The host name dns1.cafe24.com points to: 112.175.246.226, 112.175.246.227, 175.125.93.130 and 175.125.93.131.

The host name dns2.cafe24.com points to: 112.175.247.226, 112.175.247.227, 175.125.93.140 and 175.125.93.141.

The host name ns2.cafe24.com points to: 1.226.85.4, 1.234.0.4, 112.175.11.4 and 112.175.12.4.

The host name dns1.cafe24.co.kr points to: 112.175.246.228, 112.175.246.229, 175.125.93.132 and 175.125.93.133.

The host name dns2.cafe24.co.kr points to: 112.175.247.228, 112.175.247.229, 175.125.93.142 and 175.125.93.143.

The host name ns1.cafe24.co.kr points to: 112.175.246.232, 112.175.246.233, 175.125.93.136 and 175.125.93.137.

The host name ns2.cafe24.co.kr points to: 112.175.247.232, 112.175.247.233, 175.125.93.146 and 175.125.93.147.

Mail Servers

challengerkorea.com is handled by a single mail server, mw-002.cafe24.com.

challengerkorea.com shares the same mail server setup as other domains, including imakeit.kr, pulgrim.co.kr, dabia.net, plantuino.com and firstblog.co.kr.

challengerkorea.com shares some mail servers with other domains, for instance redbik.com, koros.or.kr and jobplin.com.

these mail servers are commonly used alongside the mail servers aspmx1.dooray.com.

mw-002.cafe24.com points to one IP number: 211.34.104.38.

challengerkorea.com - robtex.com