esp.ac.jp - robtex.com

esp.ac.jp

DNSSEC⚠️ Not signed
A163.43.133.142🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRprod.esp.ac.jp
NSns000.d-53.net ⭐
NSns004-ndkvp6z3zpq5fzlt.n.d-53.info
A2001:240:bb81::28:35🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs004.d-53.biz
A202.32.219.35🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs004.d-53.biz
NSns004-ndkvp6z3zpq5fzlt.n.d-53.jp
A2001:240:bb81::29:1095🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs004.d-53.org
A2400:cb00:2049:1::a29f:1aa9🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1bc6🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.26.169Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.27.198Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A203.180.146.95🇯🇵 IIJ-AS203.180.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs004.d-53.org
NSns004-ndkvp6z3zpq5fzlt.n.d-53.net
A2001:240:bb81::29:95🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs004.d-53.net
A210.138.20.95🇯🇵 IIJ-AS210.138.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs004.d-53.net
MXesp-ac-jp.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A2a01:111:f403:cc1a::3🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00203.inbound.protection.outlook.com
A2a01:111:f403:cc1f::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01201.inbound.protection.outlook.com
A2a01:111:f403:cc24::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01300.inbound.protection.outlook.com
A52.101.124.1🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A52.101.124.5🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00305.inbound.protection.outlook.com
A52.101.157.10🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01302.inbound.protection.outlook.com
A52.101.157.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01203.inbound.protection.outlook.com
TXTadobe-idp-site-verification=45cb267e03d9b0fcbb9d59f1c71c5482532982e3e52f3b3d4...
TXTseculio-domain-verification-code=b6e27e44732742eaed122e40a824491f21874575b4eb...
TXTv=spf1 include:spf.protection.outlook.com ip4:210.172.100.121 a:mx01.esp.ac.j...
TXTMS=ms74485144
TXT_0l98zqbmnaxm33rq3pdxeet5c33d0sk
TXTapple-domain-verification=RxjlMhYCTdHid8mT
TXTMS=3D0BB8FBB2CFCF9ECA03077D9B0FD7E9210767FD
SOAns000.d-53.netdns-managers@iij.ad.jp serial=114

ac.jp

DNSSEC⚠️ Not signed
TXTac.jp.
rank #515447 globally
rank #9732 in the tld
WOT: SAFE (80/100)

Subdomains

prod.esp.ac.jp
www.esp.ac.jp
gate.esp.ac.jp

Same first word

esp.guru
esp.media
esp.nyc
esp.ventures
esp.vc
esp.es
esp.net.pk
esp.company
esp.net
esp.energy
esp.to
esp.pl
esp.biz
esp.com.pl
esp.co.za
esp.ac.jp
esp.lt
esp.im
esp.com.sg
esp.center
esp.gg
esp.it
esp.li
esp.jp
esp.tl
esp.me
esp.iki.fi
esp.graphics
esp.be
esp.bet
esp.de
esp.com.mx
esp.tv
esp.br
esp.ru
esp.co
esp.tempurl.host
esp.ca
esp.mn
esp.rs.gov.br
esp.edu.mo
esp.com.ua
esp.lv
esp.st
esp.ne.jp
esp.management
esp.co.nz
esp.mr
esp.us
esp.dk
esp.com.ru
esp.in
esp.fi
esp.com.mk
esp.or.at
esp.sn
esp.repair
esp.ir
esp.rs
esp.hu
esp.nl
esp.net.pl
esp.com.cn
esp.sg
esp.pt
esp.mg.gov.br
esp.su
esp.ce.gov.br
esp.industries
esp.info
esp.cl
esp.si
esp.md
esp.vn
esp.land
esp.events
esp.digital
esp.nu
esp.life
esp.ch
esp.cc
esp.hk
esp.cz
esp.co.uk
esp.pe
esp.vg
esp.org.tr
esp.ie
esp.world
esp.marketing
esp.gr
esp.no
esp.kz
esp.aero
esp.com.tr
esp.edu.gr
esp.agency
esp.com
esp.se
esp.org
esp.or.jp
esp.io
esp.ltd

Similar names

eps.lt
sep.in.net
sep.co.il
sep.tv
pse.ro
eps.in.ua
sep.radom.pl
eps.vn
eps.com.tw
eps.lu
spe.cz
pse.de
sep.gda.pl
pse.co.in
spe.com
pse.si
pse.nl
pse.one
sep.es
spe.it
pse.dev
pes.at
spe.asia
spe.com.fj
spe.se
pes.co.th
eps.com.tr
pse.cz
eps.ca
pes.fi
sep.com.pl
pse.mx
eps.me
pse.jp
eps.tv
eps.net.nz
eps.center
pse.org.uk
pes.pt
spe.mobi
sep.com.au
eps.bg
pse.ee
eps.jp
eps.edu.hk
eps.gda.pl
spe.ug
sep.qa
eps.com.es
sep.com.sa
spe.com.tr
eps.li
sep.im
pse.dk
sep.energy
pse.be
spe.org.pl
pes.gs
eps.to
spe.ir
pes.de
sep.id
sep.co
sep.bg
eps.com
pse.pl
spe.org.tw
pse.fi
pes.edu.jo
pes.com.br
pes.biz
pes.vn
eps.engineering
pes.fr
pes.co.id
eps.com.hk
sep.lublin.pl
eps.ac.uk
pes.com
spe.mg

DNS History

9 records (6 active, 3 former)

20162017201820192020202120222023202420252026NSns000.d-53.netns004-ndkvp6z3zpq5fzlt.n.d-53.infons004-ndkvp6z3zpq5fzlt.n.d-53.jpns004-ndkvp6z3zpq5fzlt.n.d-53.netuns01.usen.ad.jpuns02.usen.ad.jpMXesp-ac-jp.mail.protection.outlook.commx01.esp.ac.jpA163.43.133.142
●NSns000.d-53.net2026-02-18 → 2026-03-17 · 3 obs
○ 2017-01-27 04:56:28
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38
●NSns004-ndkvp6z3zpq5fzlt.n.d-53.info2026-02-18 → 2026-03-17 · 3 obs
○ 2017-01-27 04:56:28
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38
●NSns004-ndkvp6z3zpq5fzlt.n.d-53.jp2026-02-18 → 2026-03-17 · 3 obs
○ 2017-01-27 04:56:28
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38
●NSns004-ndkvp6z3zpq5fzlt.n.d-53.net2026-02-18 → 2026-03-17 · 3 obs
○ 2017-01-27 04:56:28
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38
○NSuns01.usen.ad.jp2015-09-02 → 2017-01-27 · 4 obs
● 2015-09-02 04:16:40
● 2017-01-27 04:56:28
○ 2026-02-18 11:25:08
○ 2026-03-17 06:12:38
○NSuns02.usen.ad.jp2015-09-02 → 2017-01-27 · 4 obs
● 2015-09-02 04:16:40
● 2017-01-27 04:56:28
○ 2026-02-18 11:25:08
○ 2026-03-17 06:12:38
●MXesp-ac-jp.mail.protection.outlook.com2026-02-18 → 2026-03-17 · 3 obs
○ 2017-01-27 04:56:28
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38
○MXmx01.esp.ac.jp2015-09-02 → 2017-01-27 · 4 obs
● 2015-09-02 04:16:40
● 2017-01-27 04:56:28
○ 2026-02-18 11:25:08
○ 2026-03-17 06:12:38
●A163.43.133.1422026-02-18 → 2026-03-17 · 2 obs
● 2026-02-18 11:25:08
● 2026-03-17 06:12:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
esp.ac.jpns004-ndkvp6z3zpq5fzlt.n.d-53.info, ns004-ndkvp6z3zpq5fzlt.n.d-53.net, ns004-ndkvp6z3zpq5fzlt.n.d-53.jp-

✅ Authoritative Response

Server: 210.138.20.95

NS records: ns004-ndkvp6z3zpq5fzlt.n.d-53.info, ns004-ndkvp6z3zpq5fzlt.n.d-53.net, ns004-ndkvp6z3zpq5fzlt.n.d-53.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for esp.ac.jp (unsigned zone)

⏱️ Timing

Total: 1726ms | Queries: -

📄 Records

TypeCountSample Data
A1163.43.133.142
NS3ns004-ndkvp6z3zpq5fzlt.n.d-53.net, ns004-ndkvp6z3zpq5fzlt.n.d-53.info...
MX1esp-ac-jp.mail.protection.outlook.com (p
TXT7adobe-idp-site-verification=45cb267e03d9, seculio-domain-verification-code=b6e27e4...
SOA1ns000.d-53.net dns-managers.iij.ad.jp

Analysis

Hierarchy

esp.ac.jp is a parent of prod.esp.ac.jp, www.esp.ac.jp and gate.esp.ac.jp.

IP Addresses

esp.ac.jp points to a single IP address: 163.43.133.142.

Other host names such as prod.esp.ac.jp and www.esp.ac.jp share IP numbers with esp.ac.jp.

Name Servers

esp.ac.jp is delegated to four name servers: ns000.d-53.net, ns004-ndkvp6z3zpq5fzlt.n.d-53.info, ns004-ndkvp6z3zpq5fzlt.n.d-53.jp and ns004-ndkvp6z3zpq5fzlt.n.d-53.net.

At least part of the name servers for esp.ac.jp are shared with other domains, for instance accel-world.net, 250.110.133.in-addr.arpa, 21.138.210.in-addr.arpa, tance.co.jp and t-daiba.com.

these name servers are commonly used with the name servers dns-b.iij.ad.jp, dns-c.iij.ad.jp, rev.iij-dns.jp, rev.iij-dns.net, ns01.iij-dns.jp, ns00.iij-dns.net, ns00-pub.static.iijgio.jp, ns01-pub.static.iijgio.jp, ns.iij-dns.biz and ns.iij-dns.jp.

Host names with six IPs:

ns004-ndkvp6z3zpq5fzlt.n.d-53.jp points to: 2001:240:bb81::29:1095, 2400:cb00:2049:1::a29f:1aa9, 2400:cb00:2049:1::a29f:1bc6, 162.159.26.169, 162.159.27.198 and 203.180.146.95.

Host names with two IPs:

ns004-ndkvp6z3zpq5fzlt.n.d-53.info points to: 2001:240:bb81::28:35, 202.32.219.35.

ns004-ndkvp6z3zpq5fzlt.n.d-53.net points to: 2001:240:bb81::29:95, 210.138.20.95.

Mail Servers

The mail server for esp.ac.jp is esp-ac-jp.mail.protection.outlook.com.

esp-ac-jp.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:cc1a::1, 2a01:111:f403:cc1a::3, 2a01:111:f403:cc1f::1, 2a01:111:f403:cc24::, 52.101.124.1, 52.101.124.5, 52.101.157.10 and 52.101.157.11.