certification.jp - dns.ninja

`certification.jp`

DNSSEC	⚠️ Not signed
A	157.7.189.128^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`users209.vip.heteml.jp`
NS	`certification.jp` ⭐
		A	157.7.189.128^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`users209.vip.heteml.jp`
NS	`dns01.muumuu-domain.com`
		A	202.239.23.39^{🇯🇵 IDC202.239.23.0/24 Frontier Inc.}
NS	`dns02.muumuu-domain.com`
		A	160.251.249.62^{🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=YQYwag6wazQzRxwxFK_tm-ysDb30iPl3Zz-wadrvRYo`
TXT	`v=spf1 include:_spf.google.com include:mail.moneyforward.com ~all`
SOA	`certification.jp`postmaster@certification.jp serial=1637974816

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1781970302

NS for

certification.jp

Same first word

certification.ua

certification.io

certification.center

certification.net

certification.net.ua

certification.co.in

certification.coach

certification.photography

certification.eu

certification.digital

certification.lol

certification.am

certification.fi

certification.ie

certification.se

certification.solutions

certification.academy

certification.us

certification.zone

certification.in

certification.jp

certification.cc

certification.pl

certification.dk

certification.services

certification.dp.ua

certification.systems

certification.agency

certification.network

certification.cn

certification.kz

certification.de

certification.management

certification.ltd

certification.be

certification.pk

certification.guide

certification.nu

certification.com

certification.world

certification.org.ge

certification.international

certification.fr

certification.no

certification.lt

certification.tn

certification.it

certification.nl

Similar names

rectification.com

rectification.be

rectification.net

rectification.org

rectification.fr

DNS History

16 records (9 active, 7 former)

●NScertification.jp2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

○NSdns0.heteml.jp2015-08-06 → 2017-05-23 · 4 obs

● 2015-08-06 13:11:04
● 2017-05-23 06:45:22
○ 2026-06-13 11:07:02
○ 2026-06-20 15:58:12

●NSdns01.muumuu-domain.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

●NSdns02.muumuu-domain.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

○NSdns1.heteml.jp2015-08-06 → 2017-05-23 · 4 obs

● 2015-08-06 13:11:04
● 2017-05-23 06:45:22
○ 2026-06-13 11:07:02
○ 2026-06-20 15:58:12

●MXalt1.aspmx.l.google.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

●MXalt2.aspmx.l.google.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

●MXalt3.aspmx.l.google.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

●MXalt4.aspmx.l.google.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

●MXaspmx.l.google.com2026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

○MXmx-proxy501.heteml.jp2015-08-06 → 2017-05-23 · 4 obs

● 2015-08-06 13:11:04
● 2017-05-23 06:45:22
○ 2026-06-13 11:07:02
○ 2026-06-20 15:58:12

○MXmx-proxy502.heteml.jp2015-08-06 → 2017-05-23 · 4 obs

● 2015-08-06 13:11:04
● 2017-05-23 06:45:22
○ 2026-06-13 11:07:02
○ 2026-06-20 15:58:12

○A133.130.17.422016-06-03 → 2017-05-23 · 5 obs

○ 2016-04-03 08:11:56
● 2016-06-03 12:50:58
● 2017-05-23 06:45:22
○ 2026-06-13 11:07:02
○ 2026-06-20 15:58:12

○A157.7.188.1902015-09-08 → 2016-04-03 · 5 obs

○ 2015-08-06 13:11:04
● 2015-09-08 15:09:22
● 2016-04-03 08:11:56
○ 2016-06-03 12:50:58
○ 2026-06-20 15:58:12

●A157.7.189.1282026-06-13 → 2026-06-20 · 3 obs

○ 2017-05-23 06:45:22
● 2026-06-13 11:07:02
● 2026-06-20 15:58:12

○A210.188.195.202015-08-06 → 2015-08-06 · 3 obs

● 2015-08-06 13:11:04
○ 2015-09-08 15:09:22
○ 2026-06-20 15:58:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
certification.jp	dns02.muumuu-domain.com, dns01.muumuu-domain.com	-

✅ Authoritative Response

Server:160.251.249.62

NS records: dns02.muumuu-domain.com, dns01.muumuu-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certification.jp (unsigned zone)

⏱️ Timing

Total: 1437ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.189.128`
NS	2	`dns02.muumuu-domain.com, dns01.muumuu-domain.com`
MX	5	`ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ASPMX.L.GOOGLE.COM (pri: 1)...`
TXT	2	`google-site-verification=YQYwag6wazQzRxw, v=spf1 include:_spf.google.com include:m`
SOA	1	`certification.jp postmaster.certificatio`

Analysis

Name Server Role

certification.jp acts as a name server for certification.jp, meaning it is self-referentially delegated.

dns01.muumuu-domain.com, dns02.muumuu-domain.com and certification.jp are commonly seen together as name servers.

IP Addresses

certification.jp resolves to one IP address: 157.7.189.128.

strategic-solutions.co.jp, aestas.jp, gazebofilm.jp and two other host names share IP numbers with certification.jp.

Name Servers

The NS records for certification.jp list three name servers: certification.jp, dns01.muumuu-domain.com and dns02.muumuu-domain.com.

The name servers of certification.jp overlap at least partially with those of other domains — among them p-fit.co.jp, towa.jp, wiib.co.jp and two more.

certification.jp has IP address 157.7.189.128, dns01.muumuu-domain.com has IP address 202.239.23.39 and dns02.muumuu-domain.com has IP address 160.251.249.62 — one address each.

Mail Servers

certification.jp has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

certification.jp has at least partial mail server overlap with other domains such as sonify.io, echoavinc.com, raogroup.com and two more.

The mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx3.googlemail.com and aspmx2.googlemail.com are commonly seen alongside these mail servers.

Hostnames that resolve to two IP addresses:

The A records for aspmx.l.google.com return 172.253.122.26 and 2607:f8b0:4004:c0b::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.