`jnetwk.net`

DNSSEC	⚠️ Not signed
NS	`ns1.jcs-idc.jp` ⭐
		A	211.120.239.238^{🇯🇵 II-OKINAWA211.120.224.0/20}
NS	`ns2.jcs-idc.jp`
		A	61.200.35.180^{🇯🇵 GIGAINFRA61.200.0.0/18 BBT-CIDR-BLOCK}
MX	`mail.jnetwk.net` ⭐
		A	211.120.239.238^{🇯🇵 II-OKINAWA211.120.224.0/20}
SOA	`ns1.jcs-idc.jp`hostmaster@jcs-idc.jp 2025-12-01 #1

`net`

	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=1776068267

Subdomains

mail.jnetwk.net

Same first word

jnetwk.net

Similar names

jkwnet.com

wnjket.cn

DNS History

5 records (3 active, 2 former)

●NSns1.jcs-idc.jp2016-03-24 → 2026-04-13 · 3 obs

○ 2015-12-17 20:16:52
● 2016-03-24 12:21:02
● 2026-04-13 08:26:52

○NSns1.jnetwk.net2015-08-03 → 2015-12-17 · 4 obs

● 2015-08-03 16:18:14
● 2015-12-17 20:16:52
○ 2016-03-24 12:21:02
○ 2026-04-13 08:26:52

●NSns2.jcs-idc.jp2015-08-03 → 2026-04-13 · 2 obs

● 2015-08-03 16:18:14
● 2026-04-13 08:26:52

●MXmail.jnetwk.net2026-03-05 → 2026-04-13 · 3 obs

○ 2016-03-24 12:21:02
● 2026-03-05 13:38:00
● 2026-04-13 08:26:52

○MXns1.jnetwk.net2015-08-03 → 2015-12-17 · 4 obs

● 2015-08-03 16:18:14
● 2015-12-17 20:16:52
○ 2016-03-24 12:21:02
○ 2026-04-13 08:26:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jnetwk.net	ns2.jcs-idc.jp, ns1.jcs-idc.jp	-

✅ Authoritative Response

Server:211.120.239.238

NS records: ns2.jcs-idc.jp, ns1.jcs-idc.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jnetwk.net (unsigned zone)

⏱️ Timing

Total: 1039ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.jcs-idc.jp, ns2.jcs-idc.jp`
MX	1	`mail.jnetwk.net (pri: 10)`
SOA	1	`ns1.jcs-idc.jp hostmaster.jcs-idc.jp`

Analysis

Hierarchy

jnetwk.net is the parent of mail.jnetwk.net.

Name Servers

jnetwk.net is delegated to two name servers ns1.jcs-idc.jp and ns2.jcs-idc.jp.

jnetwk.net shares the same name server setup as other domains, for instance ihls.co.jp, 32h.127.101.111.in-addr.arpa, asiax.jp, 128.212.127.219.in-addr.arpa and 192.220.127.219.in-addr.arpa.

jnetwk.net at least partially shares name servers with other domains, for instance jcs-ltd.com, khs-cloud.jp, kosaido-hr.info, toreruya.com and itbarrierfree.net.

These name servers are commonly used with ns.workin.jp, ns.lohasroom.net and ns.jcs-ltd.com.

Host names with one IP number:

ns1.jcs-idc.jp points to 211.120.239.238

ns2.jcs-idc.jp points to 61.200.35.180

Mail Servers

jnetwk.net is handled by a single mail server, mail.jnetwk.net.

mail.jnetwk.net resolves to IP 211.120.239.238.

jnetwk.net - robtex.com

jnetwk.net

net