`crystal21.com`

DNSSEC	⚠️ Not signed
A	129.154.192.9^{🇰🇷 ORACLE-OCI-31898129.154.192.0/19 Oracle Corporation}
NS	`ns11.whois.co.kr` ⭐ ⚠️ Not in zone NS records
		A	175.106.98.205^{🇰🇷 NBPAP-AS-AP175.106.96.0/20 NAVER business platform cloud service}
NS	`ns11.whoisweb.net` ⚠️ Not in zone NS records
		A	223.130.141.86^{🇰🇷 NBPAP-AS-AP223.130.128.0/19 NAVER business platform cloud service}
MX	`alf1.aspmx.whoisworks.com` ⭐
		A	193.123.252.198^{🇰🇷 ORACLE-OCI-31898193.123.224.0/19 KINX-Oracle}
			PTR	`filter00.whoisworks.com`
MX	`alf2.aspmx.whoisworks.com` ⭐
		A	152.70.238.229^{🇰🇷 ORACLE-OCI-31898152.70.232.0/21}
			PTR	`filter01.whoisworks.com`
MX	`aspmx.whoisworks.com` ⭐
		A	193.123.252.198^{🇰🇷 ORACLE-OCI-31898193.123.224.0/19 KINX-Oracle}
			PTR	`filter00.whoisworks.com`
TXT	`v=spf1 include:spf1.whoisweb.net include:spf1.whoisworks.com ~all`
SOA	`ns11.whois.co.kr`root@ns11@whois.co.kr 2006-04-07 #0

`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=1776272062

crystal21.com

8 records (6 active, 2 former)

●NSns11.whois.co.kr2008-03-20 → 2026-04-15 · 2 obs

● 2008-03-20 07:41:46
● 2026-04-15 16:55:46

●NSns11.whoisweb.net2008-03-20 → 2026-04-15 · 2 obs

● 2008-03-20 07:41:46
● 2026-04-15 16:55:46

●MXalf1.aspmx.whoisworks.com2026-04-04 → 2026-04-15 · 3 obs

○ 2017-03-24 22:48:38
● 2026-04-04 15:36:14
● 2026-04-15 16:55:46

●MXalf2.aspmx.whoisworks.com2026-04-04 → 2026-04-15 · 3 obs

○ 2017-03-24 22:48:38
● 2026-04-04 15:36:14
● 2026-04-15 16:55:46

●MXaspmx.whoisworks.com2026-04-04 → 2026-04-15 · 3 obs

○ 2017-03-24 22:48:38
● 2026-04-04 15:36:14
● 2026-04-15 16:55:46

○MXmail.crystal21.com2015-07-10 → 2017-03-24 · 5 obs

○ 2008-03-20 07:41:46
● 2015-07-10 01:55:00
● 2017-03-24 22:48:38
○ 2026-04-04 15:36:14
○ 2026-04-15 16:55:46

●A129.154.192.92026-04-04 → 2026-04-15 · 3 obs

○ 2017-03-24 22:48:38
● 2026-04-04 15:36:14
● 2026-04-15 16:55:46

○A218.232.110.1832015-07-10 → 2017-03-24 · 5 obs

○ 2008-03-20 07:41:46
● 2015-07-10 01:55:00
● 2017-03-24 22:48:38
○ 2026-04-04 15:36:14
○ 2026-04-15 16:55:46

crystal21.com resolves to one IP number: 129.154.192.9.

other host names including solzen.com, www.highan.com, cafelana.com, nextmove.co.kr and clickseo.com share IP numbers with crystal21.com.

crystal21.com is delegated to two name servers ns11.whoisweb.net and ns11.whois.co.kr.

crystal21.com shares the same name server setup as other domains, for instance oktpe.co.kr, dyne.co.kr, edskorea.kr, champ-k.com and 12956.com.

crystal21.com at least partially shares name servers with other domains, for instance koreawine.co.kr, gongje.co.kr, gnntv.com, cjninebridges.com and k-raft.net.

Host names with one IP number:

crystal21.com shares some mail servers with other domains, at least partially, for instance woosinsteel.com, mechapia.com, sysmeka.com, saracom.co.kr and bemyguest.co.kr.