chuo-u.jp - robtex.com

chuo-u.jp

DNSSEC⚠️ Not signed
NSnezumi.cc.chuo-u.ac.jp ⭐
A133.91.40.9🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRnezumi.cc.chuo-u.ac.jp
NShibari.c.chuo-u.ac.jp
A133.91.254.11🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRhibari.c.chuo-u.ac.jp
NSneko.tc.chuo-u.ac.jp
A133.91.135.8🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRtsubame.tc.chuo-u.ac.jp
MXchuogwy.cc.chuo-u.ac.jp ⭐
A133.91.40.8🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRchuogwy.cc.chuo-u.ac.jp
MXkasuga.cc.chuo-u.ac.jp(30)
A133.91.40.7🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRkasuga.cc.chuo-u.ac.jp
MXari.tc.chuo-u.ac.jp(40)
A133.91.135.11🇯🇵 CHUO-U133.91.0.0/16 Chuo University
PTRari.tc.chuo-u.ac.jp
SOAnezumi.cc.chuo-u.ac.jppostmaster@chuo-u.jp 2024-12-03 #1

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1775990702

Same first word

chuo-u.org
chuo-u.net
chuo-u.jp
chuo-u.gr.jp
chuo-u.com
chuo-u.ac.jp
chuo-u.in
chuo-u.cc

Similar names

chu-ou.com
chu-ou.jp
chu-ou.co.jp
u-chuo.com
chu-ou.biz

DNS History

8 records (6 active, 2 former)

200920112013201520172019202120232025NShibari.c.chuo-u.ac.jpneko.tc.chuo-u.ac.jpnezumi.cc.chuo-u.ac.jpMXari.tc.chuo-u.ac.jpchuogwy.cc.chuo-u.ac.jpkasuga.cc.chuo-u.ac.jpA133.91.254.84133.91.254.9
●NShibari.c.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
●NSneko.tc.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
●NSnezumi.cc.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
●MXari.tc.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
●MXchuogwy.cc.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
●MXkasuga.cc.chuo-u.ac.jp2008-03-07 → 2026-04-12 · 2 obs
● 2008-03-07 05:45:04
● 2026-04-12 10:59:16
○A133.91.254.842015-09-02 → 2016-12-30 · 5 obs
○ 2008-03-07 05:45:04
● 2015-09-02 09:51:10
● 2016-12-30 10:15:26
○ 2026-03-24 16:33:16
○ 2026-04-12 10:59:16
○A133.91.254.92008-03-07 → 2008-03-07 · 3 obs
● 2008-03-07 05:45:04
○ 2015-09-02 09:51:10
○ 2026-04-12 10:59:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
chuo-u.jpneko.tc.chuo-u.ac.jp, hibari.c.chuo-u.ac.jp, nezumi.cc.chuo-u.ac.jp1 record

✅ Authoritative Response

Server:133.91.40.9

NS records: neko.tc.chuo-u.ac.jp, hibari.c.chuo-u.ac.jp, nezumi.cc.chuo-u.ac.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for chuo-u.jp (unsigned zone)

⏱️ Timing

Total: 1471ms | Queries: -

📄 Records

TypeCountSample Data
NS3hibari.c.chuo-u.ac.jp, nezumi.cc.chuo-u.ac.jp...
MX3chuogwy.cc.chuo-u.ac.jp (pri: 10), kasuga.cc.chuo-u.ac.jp (pri: 30)...
SOA1nezumi.cc.chuo-u.ac.jp postmaster.chuo-u

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (hibari.c.chuo-u.ac.jp)

Analysis

Name Servers

chuo-u.jp is delegated to three name servers hibari.c.chuo-u.ac.jp, nezumi.cc.chuo-u.ac.jp and neko.tc.chuo-u.ac.jp.

chuo-u.jp at least partially shares name servers with other domains, for instance chuo-u.ac.jp, rdi.chuo-u.ac.jp, tamacc.chuo-u.ac.jp, g.chuo-u.ac.jp and 91.133.in-addr.arpa.

These name servers are commonly used with tsubame.tc.chuo-u.ac.jp, chuogwy.cc.chuo-u.ac.jp, kasuga.cc.chuo-u.ac.jp, kitc2478.kc.chuo-u.ac.jp, kitc24c4.kc.chuo-u.ac.jp, dns-x.sinet.ad.jp, mailgw1.kc.chuo-u.ac.jp, mailgw2.kc.chuo-u.ac.jp and leopard.net-room.chuo-u.ac.jp.

Host names with one IP:

hibari.c.chuo-u.ac.jp points to 133.91.254.11; nezumi.cc.chuo-u.ac.jp points to 133.91.40.9; neko.tc.chuo-u.ac.jp points to 133.91.135.8.

Mail Servers

Three mail servers handle chuo-u.jp: chuogwy.cc.chuo-u.ac.jp, kasuga.cc.chuo-u.ac.jp and ari.tc.chuo-u.ac.jp.

chuo-u.jp shares at least partially some mail servers with other domains, for instance tc.chuo-u.ac.jp, chuo-u.ac.jp, net.chuo-u.ac.jp, cc.chuo-u.ac.jp and c.chuo-u.ac.jp.

Host names with one IP:

chuogwy.cc.chuo-u.ac.jp points to 133.91.40.8; kasuga.cc.chuo-u.ac.jp points to 133.91.40.7; ari.tc.chuo-u.ac.jp points to 133.91.135.11.