`kouken.net`

DNSSEC	⚠️ Not signed
A	183.90.240.18^{🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.}
		PTR	`sv2217.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.xserver.jp`
NS	`ns2.xserver.jp`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp`
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`
MX	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽³⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 mx include:zoho.com ~all`
SOA	`ns1.xserver.jp`root@sv0.xserver.jp serial=0

`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=1785454552

Subdomains

www.kouken.net

Same first word

kouken.jp

kouken.com

kouken.co.jp

kouken.ricoh

kouken.net

kouken.info

kouken.ne.jp

Similar names

enkoku.com

kkenou.com

kenkuo.net

ukenko.info

koneku.com

konuke.com

kenkou.co.uk

kenkou.biz

okuken.com

koneku.de

kenkou.info

kenkou.co.jp

kkueno.jp

kenkou.com.cn

nekoku.de

kokune.net

kokune.co.jp

okuken.jp

kenkou.ne.jp

okunek.de

kenkou.jp

kenkou.okinawa

kenkou.support

kenkou.plus

kounek.com

keknou.com

kounek.cz

kuoken.com

kenkou.to

kenkou.net

kenkuo.com

uenokk.com

ukenko.com

kenkou.com

uenokk.co.jp

kenkou.cc

kenkou.xyz

kenkou.or.jp

ukkone.herokuapp.com

kenkou.de

kenkou.life

DNS History

22 records (9 active, 13 former)

○NSns01.gmoserver.jp2015-08-11 → 2015-10-24 · 5 obs

○ 2007-09-20 02:44:50
● 2015-08-11 18:55:28
● 2015-10-24 07:51:04
○ 2016-01-03 16:04:14
○ 2026-07-30 23:41:34

○NSns02.gmoserver.jp2015-08-11 → 2015-10-24 · 5 obs

○ 2007-09-20 02:44:50
● 2015-08-11 18:55:28
● 2015-10-24 07:51:04
○ 2016-01-03 16:04:14
○ 2026-07-30 23:41:34

○NSns1.absorise.jp2007-09-20 → 2007-09-20 · 3 obs

● 2007-09-20 02:44:50
○ 2015-08-11 18:55:28
○ 2026-07-30 23:41:34

○NSns1.value-domain.com2016-01-03 → 2016-05-23 · 5 obs

○ 2015-10-24 07:51:04
● 2016-01-03 16:04:14
● 2016-05-23 22:57:50
○ 2020-02-18 14:11:22
○ 2026-07-30 23:41:34

●NSns1.xserver.jp2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○NSns2.absorise.jp2007-09-20 → 2007-09-20 · 3 obs

● 2007-09-20 02:44:50
○ 2015-08-11 18:55:28
○ 2026-07-30 23:41:34

○NSns2.value-domain.com2016-01-03 → 2016-05-23 · 5 obs

○ 2015-10-24 07:51:04
● 2016-01-03 16:04:14
● 2016-05-23 22:57:50
○ 2020-02-18 14:11:22
○ 2026-07-30 23:41:34

●NSns2.xserver.jp2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

●NSns3.xserver.jp2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

●NSns4.xserver.jp2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

●NSns5.xserver.jp2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○MXmail.kouken.net2007-09-20 → 2007-09-20 · 3 obs

● 2007-09-20 02:44:50
○ 2015-08-11 18:55:28
○ 2026-07-30 23:41:34

○MXmail2.kouken.net2007-09-20 → 2007-09-20 · 3 obs

● 2007-09-20 02:44:50
○ 2015-08-11 18:55:28
○ 2026-07-30 23:41:34

○MXmx.kouken.net2015-08-11 → 2015-10-24 · 5 obs

○ 2007-09-20 02:44:50
● 2015-08-11 18:55:28
● 2015-10-24 07:51:04
○ 2016-01-03 16:04:14
○ 2026-07-30 23:41:34

●MXmx.zoho.com2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○MXmx.zohomail.com2016-01-03 → 2016-05-23 · 5 obs

○ 2015-10-24 07:51:04
● 2016-01-03 16:04:14
● 2016-05-23 22:57:50
○ 2020-02-18 14:11:22
○ 2026-07-30 23:41:34

●MXmx2.zoho.com2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○MXmx2.zohomail.com2016-01-03 → 2016-05-23 · 5 obs

○ 2015-10-24 07:51:04
● 2016-01-03 16:04:14
● 2016-05-23 22:57:50
○ 2020-02-18 14:11:22
○ 2026-07-30 23:41:34

●MXmx3.zoho.com2020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○A157.7.165.172016-01-03 → 2016-05-23 · 5 obs

○ 2015-10-24 07:51:04
● 2016-01-03 16:04:14
● 2016-05-23 22:57:50
○ 2020-02-18 14:11:22
○ 2026-07-30 23:41:34

●A183.90.240.182020-02-18 → 2026-07-30 · 3 obs

○ 2016-05-23 22:57:50
● 2020-02-18 14:11:22
● 2026-07-30 23:41:34

○A210.253.100.742015-08-11 → 2015-10-24 · 5 obs

○ 2007-09-20 02:44:50
● 2015-08-11 18:55:28
● 2015-10-24 07:51:04
○ 2016-01-03 16:04:14
○ 2026-07-30 23:41:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
kouken.net	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	-

✅ Authoritative Response

Server:202.226.36.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kouken.net (unsigned zone)

⏱️ Timing

Total: 1031ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.240.18`
NS	5	`ns1.xserver.jp, ns2.xserver.jp...`
MX	3	`mx3.zoho.com (pri: 30), mx2.zoho.com (pri: 20)...`
TXT	1	`v=spf1 mx include:zoho.com ~all`
SOA	1	`ns1.xserver.jp root.sv0.xserver.jp`

Analysis

Hierarchy

www.kouken.net is delegated beneath kouken.net.

IP Addresses

kouken.net resolves to one IP address: 183.90.240.18.

irbjazzorchestra.com, keisuketakahashi.com, hp42.0zero.jp and two other host names share IP numbers with kouken.net.

Name Servers

kouken.net has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

There is at least partial name server overlap between kouken.net and other domains — nptech.jp, meiyou-clinic.com, kusopop.com and two more among them.

These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.

Hostnames that resolve to three IP addresses:

ns1.xserver.jp resolves to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp resolves to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp resolves to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Hosts with just one IP address:

ns2.xserver.jp resolves to 35.72.43.26.

ns3.xserver.jp resolves to 202.226.36.247.

Mail Servers

Incoming mail for kouken.net is delivered via three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

kouken.net has at least partial mail server overlap with other domains such as nulonindia.com, windshield-repair-forum.com, putuekajalanjalan.com and two more.

mx2.zoho.com points to 136.143.183.44. mx3.zoho.com and mx.zoho.com each point to 204.141.43.44.

The host names mx3.zoho.com and mx.zoho.com both resolve to 204.141.43.44 IP addresses.

kouken.net - robtex.com

kouken.net

net

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`kouken.net`

`net`