`jwhealthcare.com`

DNSSEC	⚠️ Not signed
NS	`ns2.kornet.net` ⭐
		A	211.216.50.160^{🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom}
			PTR	`ns2.kornet.net`
NS	`ns.kornet.net`
		A	211.216.50.150^{🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom}
			PTR	`ns.kornet.net`
MX	`spam.jwhealthcare.com` ⭐
		A	14.50.70.21^{🇰🇷 JWGROUP-AS-KR14.50.70.0/24 JW Hodings}
			PTR	`spam.creagene.com`
			PTR	`spam.jw-bioscience.com`
			PTR	`spam.jwhealthcare.com`
			PTR	`spam.jw-bioscience.kr`
			PTR	`spam.jw-bioscience.net`
			PTR	`spam.chemitown.co.kr`
			PTR	`spam.cnclab.co.kr`
			PTR	`spam.cwit.co.kr`
			PTR	`spam.jw-bioscience.co.kr`
			PTR	`spam.jw-group.co.kr`
			PTR	`spam.jw-holdings.co.kr`
			PTR	`spam.jw-industrial.co.kr`
			PTR	`spam.jw-lifescience.co.kr`
			PTR	`spam.jw-medical.co.kr`
			PTR	`spam.jw-pharma.co.kr`
			PTR	`spam.jw-shinyak.co.kr`
MX	`spam2.jwhealthcare.com` ⭐
		A	14.50.70.31^{🇰🇷 JWGROUP-AS-KR14.50.70.0/24 JW Hodings}
			PTR	`spam2.creagene.com`
			PTR	`spam2.jw-bioscience.com`
			PTR	`spam2.jw-bioscience.kr`
			PTR	`spam2.jw-bioscience.net`
			PTR	`spam2.chemitown.co.kr`
			PTR	`spam2.cnclab.co.kr`
			PTR	`spam2.cwit.co.kr`
			PTR	`spam2.jw-bioscience.co.kr`
			PTR	`spam2.jw-group.co.kr`
			PTR	`spam2.jw-holdings.co.kr`
			PTR	`spam2.jw-industrial.co.kr`
			PTR	`spam2.jw-lifescience.co.kr`
			PTR	`spam2.jw-medical.co.kr`
			PTR	`spam2.jw-pharma.co.kr`
			PTR	`spam2.jw-shinyak.co.kr`
TXT	`v=spf1 ip4:14.50.70.21 ip4:14.50.70.31 ip4:13.209.209.118 ip4:54.180.7.56 inc...`
SOA	`ns.kornet.net`domain@ns.kornet.net 2026-03-25 #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=1774975112

Subdomains

spam2.jwhealthcare.com

spam.jwhealthcare.com

Same first word

jwhealthcare.com

DNS History

10 records (4 active, 6 former)

●NSns.kornet.net2026-03-18 → 2026-03-31 · 3 obs

○ 2017-06-19 23:02:40
● 2026-03-18 13:17:20
● 2026-03-31 16:59:32

○NSns1.dotster.com2015-05-30 → 2017-06-19 · 4 obs

● 2015-05-30 07:19:58
● 2017-06-19 23:02:40
○ 2026-03-18 13:17:20
○ 2026-03-31 16:59:32

○NSns1.thiswebhost.com2015-05-30 → 2017-06-19 · 4 obs

● 2015-05-30 07:19:58
● 2017-06-19 23:02:40
○ 2026-03-18 13:17:20
○ 2026-03-31 16:59:32

●NSns2.kornet.net2026-03-18 → 2026-03-31 · 3 obs

○ 2017-06-19 23:02:40
● 2026-03-18 13:17:20
● 2026-03-31 16:59:32

○NSns2.thiswebhost.com2015-05-30 → 2017-06-19 · 4 obs

● 2015-05-30 07:19:58
● 2017-06-19 23:02:40
○ 2026-03-18 13:17:20
○ 2026-03-31 16:59:32

○MXmx.jwhealthcare.com2015-05-30 → 2017-06-19 · 4 obs

● 2015-05-30 07:19:58
● 2017-06-19 23:02:40
○ 2026-03-18 13:17:20
○ 2026-03-31 16:59:32

●MXspam.jwhealthcare.com2026-03-18 → 2026-03-31 · 3 obs

○ 2017-06-19 23:02:40
● 2026-03-18 13:17:20
● 2026-03-31 16:59:32

●MXspam2.jwhealthcare.com2026-03-18 → 2026-03-31 · 3 obs

○ 2017-06-19 23:02:40
● 2026-03-18 13:17:20
● 2026-03-31 16:59:32

○A66.96.149.12016-03-31 → 2017-06-19 · 5 obs

○ 2015-12-19 19:24:32
● 2016-03-31 15:42:10
● 2017-06-19 23:02:40
○ 2026-03-18 13:17:20
○ 2026-03-31 16:59:32

○A66.96.161.1592015-05-30 → 2015-12-19 · 4 obs

● 2015-05-30 07:19:58
● 2015-12-19 19:24:32
○ 2016-03-31 15:42:10
○ 2026-03-31 16:59:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
jwhealthcare.com	ns.kornet.net, ns2.kornet.net	-

✅ Authoritative Response

Server:211.216.50.150

NS records: ns.kornet.net, ns2.kornet.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jwhealthcare.com (unsigned zone)

⏱️ Timing

Total: 1747ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns.kornet.net, ns2.kornet.net`
MX	2	`spam.jwhealthcare.com (pri: 10), spam2.jwhealthcare.com (pri: 10)`
TXT	1	`v=spf1 ip4:14.50.70.21 ip4:14.50.70.31 i`
SOA	1	`ns.kornet.net domain.ns.kornet.net`

Analysis

Hierarchy

jwhealthcare.com is the parent of spam2.jwhealthcare.com and spam.jwhealthcare.com.

Name Servers

Two name servers ns2.kornet.net and ns.kornet.net handle the delegation for jwhealthcare.com.

jwhealthcare.com shares the same name server setup as other domains, for instance xn--9k3b29n02mnga.com, i-sh.co.kr, kcchain.com, hanamlib.go.kr and geoweb.co.kr.

jwhealthcare.com at least partially shares name servers with other domains, for instance nsr.re.kr, kwec.co.kr, xn--299ar7so0du2lpwb.kr, xn--vk1b89z.kr and taijin.com.

These name servers are commonly used with the following: ns2.kornet.ne.kr, xns2.hananet.net, ns1.uhost.co.kr and ns2.uhost.co.kr.

Host names with one IP:

ns2.kornet.net points to: 211.216.50.160

ns.kornet.net points to: 211.216.50.150

Mail Servers

jwhealthcare.com is handled by two mail servers: spam2.jwhealthcare.com and spam.jwhealthcare.com.

Host names with one IP:

spam2.jwhealthcare.com points to: 14.50.70.31

spam.jwhealthcare.com points to: 14.50.70.21

jwhealthcare.com - robtex.com