ctrl.titech.ac.jp - robtex.com

ctrl.titech.ac.jp

DNSSEC⚠️ Not signed
NSdns-o.net.titech.ac.jp ⭐
A131.112.125.54🇯🇵 TITECH131.112.0.0/16 Tokyo Institute of Technology
PTRdns-o.net.titech.ac.jp
NStitechdns-o.noc.titech.ac.jp
A2403:4440:40:997::125:57🇯🇵 TITECH2403:4440::/32 Tokyo Institute of Technology X-Keiro: as9367@noc.titech.ac.jp
A131.112.125.57🇯🇵 TITECH131.112.0.0/16 Tokyo Institute of Technology
PTRtitechdns-o.noc.titech.ac.jp
NStitechdns-s.noc.titech.ac.jp
A2403:4440:50:947::181:57🇯🇵 TITECH2403:4440::/32 Tokyo Institute of Technology X-Keiro: as9367@noc.titech.ac.jp
A131.112.181.57🇯🇵 TITECH131.112.0.0/16 Tokyo Institute of Technology
MXfilter.nap.gsic.titech.ac.jp ⭐
A131.112.13.7🇯🇵 TITECH131.112.0.0/16 Tokyo Institute of Technology
TXTv=spf1 include:_spf.m.titech.ac.jp ~all
SOAdns-o.net.titech.ac.jproot@dns-o.net.titech.ac.jp 2026-02-06 #0

titech.ac.jp

DNSSEC⚠️ Not signed
A131.112.125.17🇯🇵 TITECH131.112.0.0/16 Tokyo Institute of Technology
NSns1.noc.titech.ac.jp ⭐
NSns.fujisawa.wide.ad.jp ⚠️ Not in parent delegation
NStitechns2-o.noc.titech.ac.jp
NStitechns2-s.noc.titech.ac.jp
MXfilter.nap.gsic.titech.ac.jp ⭐
TXTv=spf1 include:_spf.m.titech.ac.jp ~all
TXTgoogle-site-verification=sEA5LrILIEApBN_TmrcwgzYpGxnjq6bV9lluZGkgTJE
SOAns1.noc.titech.ac.jpnoc-admin@noc.titech.ac.jp 2026-07-14 #1
WOT: SAFE (72/100)
rank #6526 globally
rank #119 in the tld
WOT: SAFE (85/100)
📈 Tranco rank: #18,484

Subdomains

ac.ctrl.titech.ac.jp
sc.ctrl.titech.ac.jp
fl.ctrl.titech.ac.jp

Same first word

ctrl.as
ctrl.io
ctrl.group
ctrl.si
ctrl.org
ctrl.co.in
ctrl.vi
ctrl.ltd
ctrl.qa
ctrl.moscow
ctrl.community
ctrl.fr
ctrl.com.au
ctrl.cz
ctrl.house
ctrl.eu
ctrl.build
ctrl.com.ua
ctrl.ie
ctrl.la
ctrl.guru
ctrl.com.tr
ctrl.run
ctrl.red
ctrl.info
ctrl.no
ctrl.co.il
ctrl.ru
ctrl.email
ctrl.co
ctrl.biz
ctrl.marketing
ctrl.pl
ctrl.quebec
ctrl.direct
ctrl.to
ctrl.lv
ctrl.gr
ctrl.com
ctrl.site
ctrl.space
ctrl.name
ctrl.com.cy
ctrl.industries
ctrl.gay
ctrl.is
ctrl.com.br
ctrl.trading
ctrl.tools
ctrl.pro
ctrl.ch
ctrl.net
ctrl.jp
ctrl.com.cn
ctrl.com.mx
ctrl.lublin.pl
ctrl.im
ctrl.us
ctrl.london
ctrl.hu
ctrl.blog
ctrl.net.cn
ctrl.lc
ctrl.sg
ctrl.ro
ctrl.ink
ctrl.de
ctrl.in
ctrl.coffee
ctrl.fi
ctrl.support
ctrl.zone
ctrl.xyz
ctrl.me
ctrl.plus
ctrl.health
ctrl.agency
ctrl.social
ctrl.cc
ctrl.one
ctrl.cn
ctrl.at
ctrl.online
ctrl.rentals
ctrl.it
ctrl.ca
ctrl.fo
ctrl.technology
ctrl.nl
ctrl.vn
ctrl.systems
ctrl.work

Similar names

tlcr.net
lcrt.ru
crtl.pl
trlc.no
lctr.dk
cltr.bio
rtcl.eu
ctlr.org
cltr.blogspot.com
lcrt.de
ltcr.com
tlrc.cn
crtl.org.in
trcl.org.in
trlc.co.uk
rltc.be
crlt.de
tcrl.com
trcl.ru
lrtc.at
lrct.co.uk
cltr.nl
crlt.org
trlc.org
ctlr.education
clrt.net
lcrt.com
lrtc.de
tcrl.co.il
tlcr.com
crtl.ch
trcl.ch
rtlc.ir
tlrc.ru
lrtc.org
tlrc.org
rclt.com
trcl.co.uk
trlc.net
clrt.ai
crlt.net
crtl.fr
cltr.uk
rctl.io
lrtc.com
tlcr.me
clrt.fr
trcl.ir
rltc.co.za
cltr.org
ctlr.com.cn
cltr.net
tlrc.de
ctlr.io
ltrc.ca
lctr.co
ltrc.vn
ltrc.com
rclt.ru

DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026NSdns-o.net.titech.ac.jptitechdns-o.noc.titech.ac.jptitechdns-s.noc.titech.ac.jpdns-s.net.titech.ac.jpns2.noc.titech.ac.jpMXfilter.nap.gsic.titech.ac.jp
●NSdns-o.net.titech.ac.jp2015-08-23 → 2026-07-15 · 2 obs
● 2015-08-23 02:08:52
● 2026-07-15 10:49:36
○NSdns-s.net.titech.ac.jp2015-08-23 → 2016-06-11 · 4 obs
● 2015-08-23 02:08:52
● 2016-06-11 20:38:52
○ 2026-03-18 02:47:58
○ 2026-07-15 10:49:36
○NSns2.noc.titech.ac.jp2015-08-23 → 2016-06-11 · 4 obs
● 2015-08-23 02:08:52
● 2016-06-11 20:38:52
○ 2026-03-18 02:47:58
○ 2026-07-15 10:49:36
●NStitechdns-o.noc.titech.ac.jp2026-03-18 → 2026-07-15 · 3 obs
○ 2016-06-11 20:38:52
● 2026-03-18 02:47:58
● 2026-07-15 10:49:36
●NStitechdns-s.noc.titech.ac.jp2026-03-18 → 2026-07-15 · 3 obs
○ 2016-06-11 20:38:52
● 2026-03-18 02:47:58
● 2026-07-15 10:49:36
●MXfilter.nap.gsic.titech.ac.jp2015-08-23 → 2026-07-15 · 2 obs
● 2015-08-23 02:08:52
● 2026-07-15 10:49:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
titech.ac.jpns.fujisawa.wide.ad.jp, titechns2-o.noc.titech.ac.jp, titechns2-s.noc.titech.ac.jp2 records
ctrl.titech.ac.jptitechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp4 records

✅ Authoritative Response

Server:131.112.125.57

NS records: titechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1983ms | Queries: -

📄 Records

TypeCountSample Data
NS2titechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp
MX1filter.nap.gsic.titech.ac.jp (pri: 5)
TXT1v=spf1 include:_spf.m.titech.ac.jp ~all
SOA1dns-o.net.titech.ac.jp root.dns-o.net.ti

📌 Glue Records Collected

Total: 6

In-bailiwick: 2 (titechns2-o.noc.titech.ac.jp, titechns2-s.noc.titech.ac.jp)

Out-of-bailiwick: 4 (titechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp, titechdns-s.noc.titech.ac.jp...)

Analysis

Hierarchy

ctrl.titech.ac.jp is the parent domain of ac.ctrl.titech.ac.jp, sc.ctrl.titech.ac.jp and fl.ctrl.titech.ac.jp.

Name Servers

Three name servers are authoritative for ctrl.titech.ac.jp: dns-o.net.titech.ac.jp, titechdns-o.noc.titech.ac.jp and titechdns-s.noc.titech.ac.jp.

ctrl.titech.ac.jp shares at least some of its name servers with other domains, including mes.titech.ac.jp, hum.titech.ac.jp, elsi.titech.ac.jp and two others.

These name servers are frequently seen alongside dns-o.noc.titech.ac.jp, dns-s.net.titech.ac.jp, ns2.noc.titech.ac.jp and 4 other name servers.

Hostnames that resolve to two IP addresses:

titechdns-o.noc.titech.ac.jp maps to two IP addresses — 131.112.125.57 and 2403:4440:40:997::125:57.

titechdns-s.noc.titech.ac.jp maps to two IP addresses — 131.112.181.57 and 2403:4440:50:947::181:57.

Hosts with just one IP address:

dns-o.net.titech.ac.jp points to the IP address 131.112.125.54.

Mail Servers

Mail for ctrl.titech.ac.jp is handled by a single mail server, filter.nap.gsic.titech.ac.jp.

ctrl.titech.ac.jp uses an identical mail server configuration to several other domains — among them zc.iir.titech.ac.jp, res.titech.ac.jp, hp.phys.titech.ac.jp and two more.

ctrl.titech.ac.jp shares at least some of its mail servers with other domains, such as isl.titech.ac.jp.

There is one IP number for filter.nap.gsic.titech.ac.jp: 131.112.13.7.