`kobakensetsu.com`

DNSSEC	⚠️ Not signed
A	153.122.205.5^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
NS	`ns2.namedserver.net` ⭐
		A	157.120.112.212^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.212^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.212^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
NS	`ns.namedserver.net`
		A	157.120.112.212^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.212^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.212^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
MX	`mx.kobakensetsu.com` ⭐
		A	153.122.206.114^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
TXT	`v=spf1 include:_spf.shared-server.net ~all`
SOA	`ns.namedserver.net`root@namedserver.net serial=2698668607

`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

Subdomains

mx.kobakensetsu.com

Same first word

kobakensetsu.com

DNS History

5 records (4 active, 1 former)

●NSns.namedserver.net2016-12-15 → 2026-03-24 · 2 obs

● 2016-12-15 21:12:14
● 2026-03-24 10:05:48

●NSns2.namedserver.net2016-12-15 → 2026-03-24 · 2 obs

● 2016-12-15 21:12:14
● 2026-03-24 10:05:48

●MXmx.kobakensetsu.com2016-12-15 → 2026-03-24 · 2 obs

● 2016-12-15 21:12:14
● 2026-03-24 10:05:48

●A153.122.205.52026-02-24 → 2026-03-24 · 3 obs

○ 2017-08-28 03:05:38
● 2026-02-24 07:24:40
● 2026-03-24 10:05:48

○A211.13.196.1322016-12-15 → 2017-08-28 · 4 obs

● 2016-12-15 21:12:14
● 2017-08-28 03:05:38
○ 2026-02-24 07:24:40
○ 2026-03-24 10:05:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net...	-
kobakensetsu.com	ns.namedserver.net, ns2.namedserver.net	-

✅ Authoritative Response

Server:157.120.112.212

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kobakensetsu.com (unsigned zone)

⏱️ Timing

Total: 1727ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.205.5`
NS	2	`ns.namedserver.net, ns2.namedserver.net`
MX	1	`mx.kobakensetsu.com (pri: 100)`
TXT	1	`v=spf1 include:_spf.shared-server.net ~a`
SOA	1	`ns.namedserver.net root.namedserver.net`

Analysis

Hierarchy

kobakensetsu.com is the parent of mx.kobakensetsu.com.

IP Addresses

kobakensetsu.com points to a single IP number: 153.122.205.5.

other host names for instance falco-genetics.com, arms-agri.jp, oniwa-lab.com, m-seizai.com and abante-cosme.com share IP numbers with kobakensetsu.com.

Name Servers

kobakensetsu.com is delegated to two name servers: ns2.namedserver.net and ns.namedserver.net.

kobakensetsu.com shares the same name server setup as other domains, for example sub0000527266.hmk-temp.com, 160.1.122.153.in-addr.arpa, 236.162.122.153.in-addr.arpa, entryjapan.com and ki-office.co.jp.

kobakensetsu.com at least partially shares name servers with other domains, for example newtonworks.co.jp and p-con.co.jp.

Host names with three IP numbers:

ns2.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212.

ns.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212.

Names pointing to 157.120.112.212: ns2.namedserver.net and ns.namedserver.net.

Names pointing to 157.120.113.212: ns2.namedserver.net and ns.namedserver.net.

Names pointing to 157.120.114.212: ns2.namedserver.net and ns.namedserver.net.

Mail Servers

kobakensetsu.com is handled by a single mail server, mx.kobakensetsu.com.

Host name mx.kobakensetsu.com points to IP address 153.122.206.114.

kobakensetsu.com - robtex.com