`mrb.co.jp`

DNSSEC	⚠️ Not signed
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
MX	`sv107.xbiz.ne.jp` ⭐
		A	183.181.99.8^{🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc.}
			PTR	`sv107.xbiz.ne.jp`
TXT	`google-site-verification=0_gjRAC28m2ENmWyYv9JDBhDC5XSRZjIGrBHQrWSAUw`
TXT	`google-site-verification=Jofs7BBn4oSifhhfTeIPSsGCU2nq8Z_CdTHv10iPPJo`
TXT	`google-site-verification=AOUMHD-ZPMa6WrhX2jVlm94tPDXAgXp4YqgmW3OT-30`
TXT	`google-site-verification=gDx2xmE6AumuHpJy5MRTRZDu4HH_nt5295aLu9KqN-Q`
TXT	`v=spf1 +a:sv107.xbiz.ne.jp +a:mrb.co.jp +mx include:spf.sender.xserver.jp ~all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1768532329

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (63/100)
WOT: SAFE (58/100)

Same first word

mrb.bio

mrb.co

mrb.uk.net

mrb.co.uk

mrb.email

mrb.co.nz

mrb.eu

mrb.lv

mrb.net.id

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mbr.pt

rmb.me

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bmr.construction

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rbm.com.au

brm.fr

mbr.com.tw

rbm.us

mbr.sa

rbm.fi

brm.edu.in

mbr.lu

brm.org

DNS History

9 records (5 active, 4 former)

●NS01.dnsv.jp2026-04-27 → 2026-05-11 · 3 obs

○ 2016-09-28 11:51:10
● 2026-04-27 09:16:08
● 2026-05-11 00:38:28

●NS02.dnsv.jp2026-04-27 → 2026-05-11 · 3 obs

○ 2016-09-28 11:51:10
● 2026-04-27 09:16:08
● 2026-05-11 00:38:28

●NS03.dnsv.jp2026-04-27 → 2026-05-11 · 3 obs

○ 2016-09-28 11:51:10
● 2026-04-27 09:16:08
● 2026-05-11 00:38:28

●NS04.dnsv.jp2026-04-27 → 2026-05-11 · 3 obs

○ 2016-09-28 11:51:10
● 2026-04-27 09:16:08
● 2026-05-11 00:38:28

○NSns.mrb.co.jp2015-08-09 → 2016-09-28 · 4 obs

● 2015-08-09 11:13:48
● 2016-09-28 11:51:10
○ 2026-04-27 09:16:08
○ 2026-05-11 00:38:28

○NSns1.nippon-intelligence.jp2015-08-09 → 2016-09-28 · 4 obs

● 2015-08-09 11:13:48
● 2016-09-28 11:51:10
○ 2026-04-27 09:16:08
○ 2026-05-11 00:38:28

○MXns.mrb.co.jp2015-08-09 → 2016-09-28 · 4 obs

● 2015-08-09 11:13:48
● 2016-09-28 11:51:10
○ 2026-04-27 09:16:08
○ 2026-05-11 00:38:28

●MXsv107.xbiz.ne.jp2026-04-27 → 2026-05-11 · 3 obs

○ 2016-09-28 11:51:10
● 2026-04-27 09:16:08
● 2026-05-11 00:38:28

○A210.255.54.1222015-08-09 → 2016-09-28 · 4 obs

● 2015-08-09 11:13:48
● 2016-09-28 11:51:10
○ 2026-04-27 09:16:08
○ 2026-05-11 00:38:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
mrb.co.jp	04.dnsv.jp, 02.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp	7 records

✅ Authoritative Response

Server:157.7.34.53

NS records: 04.dnsv.jp, 02.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1053ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	1	`sv107.xbiz.ne.jp (pri: 1)`
TXT	5	`google-site-verification=0_gjRAC28m2ENmW, google-site-verification=Jofs7BBn4oSifhh...`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)

Analysis

Name Servers

mrb.co.jp is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

mrb.co.jp at least partially shares name servers with other domains, for instance fairwayline.com, 1phone.net, c3srv.com, kyontwo.com and mysmoothskin.jp.

Two IPs for hosts:

01.dnsv.jp points to: 2400:8500:3300::53 and 157.7.32.53

03.dnsv.jp points to: 2400:8500:3000::53 and 157.7.34.53

04.dnsv.jp points to: 2400:8500:3fff::53 and 157.7.35.53

One IP for a host:

02.dnsv.jp points to: 157.7.33.53

Mail Servers

mrb.co.jp is handled by a single mail server, sv107.xbiz.ne.jp.

mrb.co.jp uses the same mail server setup as other domains such as aitecsystem.co.jp and hikarishop.com.

Host name sv107.xbiz.ne.jp points to IP address 183.181.99.8.

mrb.co.jp - robtex.com

mrb.co.jp

co.jp

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

Mail Servers

`mrb.co.jp`

`co.jp`