isbc.or.jp - robtex.com

isbc.or.jp

DNSSEC🔒 Signed (DS record present)
NSns000.d-53.net
NSdns-b.iij.ad.jp ⚠️ Not in zone NS records
A2001:240:bb81::28:51🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs020.d-53.biz
A202.32.219.51🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs020.d-53.biz
NSdns-c.iij.ad.jp ⚠️ Not in zone NS records
A2001:240:bb81::29:111🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs020.d-53.net
A210.138.20.111🇯🇵 IIJ-AS210.138.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs020.d-53.net
NSns020-gfmtm8cu3pb7v2ut.g.d-53.info ⚠️ Not in parent delegation
A2001:240:bb81::28:51🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs020.d-53.biz
A202.32.219.51🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs020.d-53.biz
NSns020-gfmtm8cu3pb7v2ut.g.d-53.jp ⚠️ Not in parent delegation
A2001:240:bb81::29:1111🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs020.d-53.org
A203.180.146.111🇯🇵 IIJ-AS203.180.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs020.d-53.org
NSns020-gfmtm8cu3pb7v2ut.g.d-53.net ⚠️ Not in parent delegation
A2001:240:bb81::29:111🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs020.d-53.net
A210.138.20.111🇯🇵 IIJ-AS210.138.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs020.d-53.net
TXTv=spf1 -all
SOAns000.d-53.netdns-managers@iij.ad.jp serial=340

or.jp

DNSSEC⚠️ Not signed
TXTor.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.

Same first word

Similar names

DNS History

6 records (6 active, 0 former)

201820192020202120222023202420252026NSdns-b.iij.ad.jpdns-c.iij.ad.jpns000.d-53.netns020-gfmtm8cu3pb7v2ut.g.d-53.infons020-gfmtm8cu3pb7v2ut.g.d-53.jpns020-gfmtm8cu3pb7v2ut.g.d-53.net
NSdns-b.iij.ad.jp2017-01-30 → 2026-07-19 · 2 obs
● 2017-01-30 22:39:26
● 2026-07-19 16:02:46
NSdns-c.iij.ad.jp2017-01-30 → 2026-07-19 · 2 obs
● 2017-01-30 22:39:26
● 2026-07-19 16:02:46
NSns000.d-53.net2026-07-12 → 2026-07-19 · 3 obs
○ 2017-01-30 22:39:26
● 2026-07-12 14:23:16
● 2026-07-19 16:02:46
NSns020-gfmtm8cu3pb7v2ut.g.d-53.info2026-07-12 → 2026-07-19 · 3 obs
○ 2017-01-30 22:39:26
● 2026-07-12 14:23:16
● 2026-07-19 16:02:46
NSns020-gfmtm8cu3pb7v2ut.g.d-53.jp2026-07-12 → 2026-07-19 · 3 obs
○ 2017-01-30 22:39:26
● 2026-07-12 14:23:16
● 2026-07-19 16:02:46
NSns020-gfmtm8cu3pb7v2ut.g.d-53.net2026-07-12 → 2026-07-19 · 3 obs
○ 2017-01-30 22:39:26
● 2026-07-12 14:23:16
● 2026-07-19 16:02:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpf.dns.jp, b.dns.jp, h.dns.jp, e.dns.jp...-
isbc.or.jpdns-c.iij.ad.jp, dns-b.iij.ad.jp-

✅ Authoritative Response

Server:202.32.219.51

NS records: dns-c.iij.ad.jp, dns-b.iij.ad.jp

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1944ms | Queries: -

📄 Records

TypeCountSample Data
NS3ns020-gfmtm8cu3pb7v2ut.g.d-53.info, ns020-gfmtm8cu3pb7v2ut.g.d-53.jp...
TXT1v=spf1 -all
SOA1ns000.d-53.net dns-managers.iij.ad.jp

Analysis

Name Servers

isbc.or.jp is served by 6 authoritative name servers — among them ns000.d-53.net, ns020-gfmtm8cu3pb7v2ut.g.d-53.info, dns-b.iij.ad.jp and 3 others.

There is at least partial name server overlap between isbc.or.jp and other domains — benrinet.co.jp, vmas.kitasato-u.ac.jp, hotmap.jp and two more among them.

These name servers regularly appear alongside dns-c.iij.ad.jp, rev.iij-dns.jp, rev.iij-dns.net and 6 other name servers in NS record sets.

Host names with two IP numbers:

ns020-gfmtm8cu3pb7v2ut.g.d-53.info resolves to two addresses: 202.32.219.51 and 2001:240:bb81::28:51.

dns-b.iij.ad.jp resolves to two addresses: 202.32.219.51 and 2001:240:bb81::28:51.

dns-c.iij.ad.jp resolves to two addresses: 210.138.20.111 and 2001:240:bb81::29:111.

ns020-gfmtm8cu3pb7v2ut.g.d-53.jp resolves to two addresses: 203.180.146.111 and 2001:240:bb81::29:1111.

ns020-gfmtm8cu3pb7v2ut.g.d-53.net resolves to two addresses: 210.138.20.111 and 2001:240:bb81::29:111.

ns020-gfmtm8cu3pb7v2ut.g.d-53.info along with dns-b.iij.ad.jp each resolve to 2001:240:bb81::28:51 IP addresses.

ns020-gfmtm8cu3pb7v2ut.g.d-53.info along with dns-b.iij.ad.jp each resolve to 202.32.219.51 IP addresses.

dns-c.iij.ad.jp along with ns020-gfmtm8cu3pb7v2ut.g.d-53.net each resolve to 2001:240:bb81::29:111 IP addresses.

dns-c.iij.ad.jp along with ns020-gfmtm8cu3pb7v2ut.g.d-53.net each resolve to 210.138.20.111 IP addresses.