stack.or.jp - dns.ninja

`stack.or.jp`

DNSSEC	⚠️ Not signed
A	183.181.97.89^{🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc.}
		PTR	`sv7088.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	`stack.or.jp` ⭐
		A	183.181.97.89^{🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc.}
			PTR	`sv7088.xserver.jp`
TXT	`v=spf1 +a:sv7088.xserver.jp +a:stack.or.jp +mx include:spf.sender.xserver.jp ...`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`or.jp`

	DNSSEC	⚠️ Not signed
	TXT	`or.jp.`

WOT: SAFE (75/100)

Overview

or.jp is a second-level domain under Japan's country code top-level domain (.jp), reserved exclusively for non-profit and organizational entities. It is managed by Japan Registry Services Co., Ltd. (JPRS), the authoritative registry for all .jp domains.

Eligible Registrants

Registration is restricted to Japanese non-profit organizations, including:

Foundations (財団法人) and associations (社団法人)
Medical corporations, audit firms, and religious organizations
NPOs (特定非営利活動法人) and special corporations
Agricultural and consumer cooperatives
International organizations and their Japanese branches
Foreign government embassies and consulates in Japan

Generally, each organization may register only one or.jp domain.

DNS Infrastructure

The or.jp zone is served by Japan's robust DNS infrastructure:

Nameservers: a.dns.jp through h.dns.jp (8 anycast servers)
Primary SOA: z.dns.jp
DNSSEC: Fully signed with validated chain of trust from root
Registry: JPRS (Japan Registry Services)

The domain hosts hundreds of subdomains for Japanese nonprofits, NGOs, professional associations, and public-interest organizations.

MX for

stack.or.jp

Subdomains

asahi.stack.or.jp

asahi4-web1.stack.or.jp

www.stack.or.jp

akagi.stack.or.jp

share01.stack.or.jp

ftp.stack.or.jp

asahi2.stack.or.jp

Same first word

stack.cool

stack.fail

stack.la

stack.com.br

stack.plus

stack.pl

stack.ie

stack.gov.sg

stack.cz

stack.ee

stack.spb.ru

stack.be

stack.house

stack.su

stack.city

stack.how

stack.net

stack.fr

stack.biz

stack.uk.net

stack.buzz

stack.agency

stack.ru

stack.ml

stack.zone

stack.blue

stack.my

stack.farm

stack.co.uk

stack.org

stack.gallery

stack.sa

stack.it

stack.or.jp

stack.fyi

stack.nl

stack.ws

stack.money

stack.com

stack.net.ng

stack.hu

stack.services

stack.world

stack.ca

stack.nyc

stack.nu

stack.pt

stack.ro

stack.cc

stack.systems

stack.host

stack.kim

stack.fo

stack.cafe

stack.co.nz

stack.io

stack.aero

stack.codes

stack.build

stack.bet

stack.creditcard

stack.network

stack.ai

stack.je

stack.lu

stack.com.uy

stack.group

stack.(0x787878)

stack.run

stack.ly

stack.kz

stack.media

stack.tv

stack.gl

stack.gg

stack.cards

stack.tokyo

stack.info

stack.solutions

stack.works

stack.gold

stack.black

stack.net.nz

stack.mx

stack.spb.su

stack.im

stack.storage

stack.foundation

stack.jp

stack.se

stack.com.au

stack.support

stack.care

stack.team

stack.ventures

stack.fi

stack.pro

stack.fitness

stack.co

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kastc.com.sa

kastc.xyz

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kacst.or.kr

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kcats.com

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skatc.ac.th

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kacts.or.kr

ctask.io

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tacsk.com

kacst.gov.sa

tasck.dev

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actks.com

DNS History

15 records (7 active, 8 former)

○NSakagi.stack.or.jp2015-08-15 → 2016-11-28 · 4 obs

● 2015-08-15 08:03:26
● 2016-11-28 14:11:28
○ 2018-06-20 13:16:24
○ 2026-06-17 11:32:24

○NSgreen.yuki-d.co.jp2015-08-15 → 2016-11-28 · 4 obs

● 2015-08-15 08:03:26
● 2016-11-28 14:11:28
○ 2018-06-20 13:16:24
○ 2026-06-17 11:32:24

○NSns-1004.awsdns-61.net2018-06-20 → 2018-06-20 · 4 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
○ 2021-09-11 21:09:56
○ 2026-06-17 11:32:24

○NSns-1446.awsdns-52.org2018-06-20 → 2018-06-20 · 4 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
○ 2021-09-11 21:09:56
○ 2026-06-17 11:32:24

○NSns-1659.awsdns-15.co.uk2018-06-20 → 2018-06-20 · 4 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
○ 2021-09-11 21:09:56
○ 2026-06-17 11:32:24

○NSns-272.awsdns-34.com2018-06-20 → 2018-06-20 · 4 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
○ 2021-09-11 21:09:56
○ 2026-06-17 11:32:24

○NSns1.stacksystem.jp2015-08-15 → 2016-11-28 · 4 obs

● 2015-08-15 08:03:26
● 2016-11-28 14:11:28
○ 2018-06-20 13:16:24
○ 2026-06-17 11:32:24

●NSns1.xserver.jp2021-09-11 → 2026-06-17 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-06-17 11:32:24

●NSns2.xserver.jp2021-09-11 → 2026-06-17 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-06-17 11:32:24

●NSns3.xserver.jp2021-09-11 → 2026-06-17 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-06-17 11:32:24

●NSns4.xserver.jp2021-09-11 → 2026-06-17 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-06-17 11:32:24

●NSns5.xserver.jp2021-09-11 → 2026-06-17 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-06-17 11:32:24

○MXasahi.stacksystem.jp2015-08-15 → 2016-11-28 · 4 obs

● 2015-08-15 08:03:26
● 2016-11-28 14:11:28
○ 2018-06-20 13:16:24
○ 2026-06-17 11:32:24

●MXstack.or.jp2018-06-20 → 2026-06-17 · 3 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
● 2026-06-17 11:32:24

●A183.181.97.892018-06-20 → 2026-06-17 · 2 obs

● 2018-06-20 13:16:24
● 2026-06-17 11:32:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
stack.or.jp	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	11 records

✅ Authoritative Response

Server:202.226.36.170

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 stack.or.jp (unsigned zone)

⏱️ Timing

Total: 740ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.97.89`
NS	5	`ns2.xserver.jp, ns1.xserver.jp...`
MX	1	`stack.or.jp (pri: 10)`
TXT	1	`v=spf1 +a:sv7088.xserver.jp +a:stack.or.`
SOA	1	`ns1.xserver.jp root.xserver.jp`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Hierarchy

stack.or.jp serves as parent to asahi.stack.or.jp, asahi4-web1.stack.or.jp, www.stack.or.jp, akagi.stack.or.jp, share01.stack.or.jp along with a few other host names.

Mail Server Role

The MX record for stack.or.jp points back to stack.or.jp — it is its own mail server.

IP Addresses

stack.or.jp directs to one IP number, which is 183.181.97.89.

Among the host names that share IP numbers with stack.or.jp are iip146.stacksystem.jp, www.stacksystem.jp, asahi.stacksystem.jp and two others.

Name Servers

The authoritative name servers for stack.or.jp are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

stack.or.jp has at least partial name server overlap with other domains, such as reibun.biz, enjoy-kosodate.com, conca.jp and two others.

It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.

Hosts with three IP address records:

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

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

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

Hosts that resolve to one IP address:

ns2.xserver.jp points to 35.72.43.26.

ns3.xserver.jp points to 202.226.36.247.

Mail Servers

The MX record for stack.or.jp points to a single mail server: stack.or.jp.

stack.or.jp resolves to a single IP number: 183.181.97.89.