`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.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.report

stack.bet

stack.creditcard

stack.ai

stack.com.uy

stack.group

stack.(0x787878)

stack.run

stack.ly

stack.kz

stack.media

stack.tv

stack.gl

stack.gg

stack.cards

stack.red

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.jp

stack.se

stack.com.au

stack.support

stack.care

stack.team

stack.ventures

stack.fi

stack.pro

stack.fitness

Similar names

ctask.org.py

kcast.com

tsack.com

kcsat.com

tckas.com

kacst.com

ktcas.com

tacks.eu

skatc.com

askct.de

tacks.ca

kacst.edu.sa

kastc.com.sa

kastc.xyz

kasct.org

aksct.com

tacks.de

astck.com

tacks.us

tacks.com.au

tacks.it

kacst.or.kr

tacks.com

atcks.com

tacks.nl

kstac.com

kcsat.org

kacts.net

atksc.com

ckats.com

tacks.org

kcats.com

tacks.net

skatc.ac.th

asktc.com

ktacs.com

kacts.or.kr

cksat.com

tacsk.com

kacst.gov.sa

tasck.dev

tcksa.com

akstc.net

skatc.nfshost.com

satck.com

catks.com

tcask.org

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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

●NSns1.xserver.jp2021-09-11 → 2026-04-23 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-04-23 23:25:20

●NSns2.xserver.jp2021-09-11 → 2026-04-23 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-04-23 23:25:20

●NSns3.xserver.jp2021-09-11 → 2026-04-23 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-04-23 23:25:20

●NSns4.xserver.jp2021-09-11 → 2026-04-23 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-04-23 23:25:20

●NSns5.xserver.jp2021-09-11 → 2026-04-23 · 3 obs

○ 2018-06-20 13:16:24
● 2021-09-11 21:09:56
● 2026-04-23 23:25:20

○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
○ 2026-04-23 23:25:20

●MXstack.or.jp2018-06-20 → 2026-04-23 · 3 obs

○ 2016-11-28 14:11:28
● 2018-06-20 13:16:24
● 2026-04-23 23:25:20

●A183.181.97.892018-06-20 → 2026-04-23 · 2 obs

● 2018-06-20 13:16:24
● 2026-04-23 23:25:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
stack.or.jp	ns5.xserver.jp, ns4.xserver.jp, ns1.xserver.jp, ns2.xserver.jp...	11 records

✅ Authoritative Response

Server:157.112.182.218

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stack.or.jp (unsigned zone)

⏱️ Timing

Total: 970ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.97.89`
NS	5	`ns5.xserver.jp, ns2.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 is the parent of asahi.stack.or.jp, asahi4-web1.stack.or.jp, www.stack.or.jp, akagi.stack.or.jp, share01.stack.or.jp and a few other host names.

Mail Server Role

For stack.or.jp, the mail server is stack.or.jp.

IP Addresses

stack.or.jp resolves to one IP number: 183.181.97.89.

other host names including iip146.stacksystem.jp, www.stacksystem.jp, asahi.stacksystem.jp, luckytail.net and ip016.stacksystem.jp share IP numbers with stack.or.jp.

Name Servers

stack.or.jp is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

stack.or.jp at least partially shares name servers with other domains, for instance reibun.biz, enjoy-kosodate.com, conca.jp, 55momonga.com and hitotsubashi-shokujukai.com.

Host names with three IP numbers:

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.

Host names with one IP number:

ns2.xserver.jp points to: 35.72.43.26; ns3.xserver.jp points to: 202.226.36.247.

Mail Servers

stack.or.jp is served by a single mail server, stack.or.jp.

stack.or.jp resolves to IP 183.181.97.89.

stack.or.jp - robtex.com

stack.or.jp

or.jp

Overview

Eligible Registrants

DNS Infrastructure

MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

Mail Server Role

IP Addresses

Name Servers

Mail Servers

`stack.or.jp`

`or.jp`