phys.titech.ac.jp - robtex.com

phys.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
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 2026-03-27 #1

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
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 (74/100)
rank #6545 globally
rank #119 in the tld
WOT: SAFE (85/100)
📈 Tranco rank: #18,523

Subdomains

th.phys.titech.ac.jp
nucl.phys.titech.ac.jp
www.phys.titech.ac.jp
hp.phys.titech.ac.jp

Same first word

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DNS History

5 records (4 active, 1 former)

201520162017201820192020202120222023202420252026NSdns-o.net.titech.ac.jptitechdns-o.noc.titech.ac.jptitechdns-s.noc.titech.ac.jpdns-s.net.titech.ac.jpMXfilter.nap.gsic.titech.ac.jp
●NSdns-o.net.titech.ac.jp2014-12-07 → 2026-07-17 · 2 obs
● 2014-12-07 07:37:38
● 2026-07-17 11:36:38
○NSdns-s.net.titech.ac.jp2014-12-07 → 2016-09-11 · 4 obs
● 2014-12-07 07:37:38
● 2016-09-11 19:20:34
○ 2026-03-19 04:50:20
○ 2026-07-17 11:36:38
●NStitechdns-o.noc.titech.ac.jp2026-03-19 → 2026-07-17 · 3 obs
○ 2016-09-11 19:20:34
● 2026-03-19 04:50:20
● 2026-07-17 11:36:38
●NStitechdns-s.noc.titech.ac.jp2026-03-19 → 2026-07-17 · 3 obs
○ 2016-09-11 19:20:34
● 2026-03-19 04:50:20
● 2026-07-17 11:36:38
●MXfilter.nap.gsic.titech.ac.jp2014-12-07 → 2026-07-17 · 2 obs
● 2014-12-07 07:37:38
● 2026-07-17 11:36:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
titech.ac.jptitechns2-o.noc.titech.ac.jp, titechns2-s.noc.titech.ac.jp, ns.fujisawa.wide.ad.jp2 records
phys.titech.ac.jptitechdns-o.noc.titech.ac.jp, titechdns-s.noc.titech.ac.jp4 records

✅ Authoritative Response

Server:131.112.181.57

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 4611ms | Queries: -

📄 Records

TypeCountSample Data
NS2titechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp
MX1filter.nap.gsic.titech.ac.jp (pri: 10)
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-o.noc.titech.ac.jp, titechdns-s.noc.titech.ac.jp, titechdns-o.noc.titech.ac.jp...)

Analysis

Hierarchy

phys.titech.ac.jp has four subdomains: th.phys.titech.ac.jp, nucl.phys.titech.ac.jp, www.phys.titech.ac.jp and hp.phys.titech.ac.jp.

Name Servers

phys.titech.ac.jp has three name servers — dns-o.net.titech.ac.jp, titechdns-o.noc.titech.ac.jp and titechdns-s.noc.titech.ac.jp.

There is at least partial name server overlap between phys.titech.ac.jp and other domains — ila.titech.ac.jp, ceram.titech.ac.jp, depe.titech.ac.jp and two more among them.

These name servers regularly appear alongside dns-o.noc.titech.ac.jp, dns-s.net.titech.ac.jp, ns2.noc.titech.ac.jp and 4 other name servers in NS record sets.

Host names that have two IP addresses:

titechdns-o.noc.titech.ac.jp resolves to 131.112.125.57 and 2403:4440:40:997::125:57.

titechdns-s.noc.titech.ac.jp resolves to 131.112.181.57 and 2403:4440:50:947::181:57.

Host names that point to one IP address:

dns-o.net.titech.ac.jp resolves to 131.112.125.54.

Mail Servers

The sole mail server for phys.titech.ac.jp is filter.nap.gsic.titech.ac.jp.

Among the domains sharing a mail server setup with phys.titech.ac.jp are mes.titech.ac.jp, se.cs.titech.ac.jp, mobile.ee.titech.ac.jp and two others.

phys.titech.ac.jp and other domains — isl.titech.ac.jp for instance — share at least some mail servers.

filter.nap.gsic.titech.ac.jp points to one IP number — 131.112.13.7.