`knowledgehouse.co.jp`

DNSSEC	⚠️ Not signed
A	60.43.156.136^{🇯🇵 OCN60.32.0.0/12 (AS4713) CIDR BLOCK 70 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
		PTR	`knowledgehouse.co.jp`
NS	`mwns1.customer.ne.jp` ⭐
		A	210.150.23.210^{🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE}
NS	`mwns2.customer.ne.jp`
		A	202.17.152.183^{🇯🇵 InfoSphere202.17.128.0/19 INFOSPHERE}
MX	`knowledgehouse.co.jp` ⭐
		A	60.43.156.136^{🇯🇵 OCN60.32.0.0/12 (AS4713) CIDR BLOCK 70 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
			PTR	`knowledgehouse.co.jp`
TXT	`v=spf1 a include:_spf.bizmw.com ~all`
SOA	`mwns1.customer.ne.jp`host-plan-ac@ntt.com serial=1613825551

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (58/100)

PTR for

136.156.43.60.in-addr.arpa

MX for

knowledgehouse.co.jp

Same first word

knowledgehouse.dk

knowledgehouse.ac.uk

knowledgehouse.co.jp

knowledgehouse.ca

knowledgehouse.net

DNS History

10 records (4 active, 6 former)

●NSmwns1.customer.ne.jp2026-03-20 → 2026-03-27 · 3 obs

○ 2018-01-27 07:42:10
● 2026-03-20 23:39:44
● 2026-03-27 15:08:18

●NSmwns2.customer.ne.jp2026-03-20 → 2026-03-27 · 3 obs

○ 2018-01-27 07:42:10
● 2026-03-20 23:39:44
● 2026-03-27 15:08:18

○NSns-204.dns.jp-e1.cloudn-service.com2016-02-02 → 2018-01-27 · 5 obs

○ 2015-11-09 13:33:28
● 2016-02-02 03:43:16
● 2018-01-27 07:42:10
○ 2026-03-20 23:39:44
○ 2026-03-27 15:08:18

○NSns-205.dns.jp-w1.cloudn-service.com2016-02-02 → 2018-01-27 · 5 obs

○ 2015-11-09 13:33:28
● 2016-02-02 03:43:16
● 2018-01-27 07:42:10
○ 2026-03-20 23:39:44
○ 2026-03-27 15:08:18

○NSns-206.dns.us-e1.cloudn-service.com2016-02-02 → 2018-01-27 · 5 obs

○ 2015-11-09 13:33:28
● 2016-02-02 03:43:16
● 2018-01-27 07:42:10
○ 2026-03-20 23:39:44
○ 2026-03-27 15:08:18

○NSns1.secure.net2015-06-28 → 2015-11-09 · 4 obs

● 2015-06-28 19:46:32
● 2015-11-09 13:33:28
○ 2016-02-02 03:43:16
○ 2026-03-27 15:08:18

○NSns2.secure.net2015-06-28 → 2015-11-09 · 4 obs

● 2015-06-28 19:46:32
● 2015-11-09 13:33:28
○ 2016-02-02 03:43:16
○ 2026-03-27 15:08:18

●MXknowledgehouse.co.jp2015-06-28 → 2026-03-27 · 2 obs

● 2015-06-28 19:46:32
● 2026-03-27 15:08:18

○A118.23.150.132015-06-28 → 2018-01-27 · 4 obs

● 2015-06-28 19:46:32
● 2018-01-27 07:42:10
○ 2026-03-20 23:39:44
○ 2026-03-27 15:08:18

●A60.43.156.1362026-03-20 → 2026-03-27 · 3 obs

○ 2018-01-27 07:42:10
● 2026-03-20 23:39:44
● 2026-03-27 15:08:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	h.dns.jp, c.dns.jp, f.dns.jp, d.dns.jp...	-
knowledgehouse.co.jp	mwns2.customer.ne.jp, mwns1.customer.ne.jp	-

✅ Authoritative Response

Server:210.150.23.210

NS records: mwns2.customer.ne.jp, mwns1.customer.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgehouse.co.jp (unsigned zone)

⏱️ Timing

Total: 1162ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`60.43.156.136`
NS	2	`mwns2.customer.ne.jp, mwns1.customer.ne.jp`
MX	1	`knowledgehouse.co.jp (pri: 10)`
TXT	1	`v=spf1 a include:_spf.bizmw.com ~all`
SOA	1	`mwns1.customer.ne.jp host-plan-ac.ntt.co`

Analysis

Mail Server Role

knowledgehouse.co.jp serves as the mail server for knowledgehouse.co.jp.

IP Addresses

knowledgehouse.co.jp points to an IP address: 60.43.156.136.

Name Servers

Two name servers mwns1.customer.ne.jp and mwns2.customer.ne.jp handle the delegation for knowledgehouse.co.jp.

knowledgehouse.co.jp shares the same name server setup as other domains, for instance san-d.co.jp, y-create.jp, mitsuyama-kiichi.org, ysc-ne.jp and nepinc.co.jp.

Host names with one IP:

mwns1.customer.ne.jp points to: 210.150.23.210

mwns2.customer.ne.jp points to: 202.17.152.183

Mail Servers

knowledgehouse.co.jp is handled by a single mail server.

The host name knowledgehouse.co.jp points to IP 60.43.156.136.

knowledgehouse.co.jp - robtex.com