tuk.co.jp - robtex.com

tuk.co.jp

DNSSEC⚠️ Not signed
A203.138.27.32🇯🇵 InfoSphere203.138.0.0/16 INFOSPHERE
PTRtuk.co.jp
NSns3.sphere.ad.jp ⭐
A202.239.113.22🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE
PTRns3.sphere.ad.jp
NSns4.sphere.ad.jp
A202.239.113.30🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE
PTRns4.sphere.ad.jp
MXtuk.co.jp ⭐
A203.138.27.32🇯🇵 InfoSphere203.138.0.0/16 INFOSPHERE
PTRtuk.co.jp
TXTv=spf1 include:fmx.etius.jp +ip4:203.138.27.2/32 +ip4:203.138.27.32/32 -all
SOAns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034227

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

PTR for

32.27.138.203.in-addr.arpa

MX for

tuk.co.jp

Same first word

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tku.ac.jp
ktu.net

DNS History

4 records (4 active, 0 former)

20162017201820192020202120222023202420252026NSns3.sphere.ad.jpns4.sphere.ad.jpMXtuk.co.jpA203.138.27.32
●NSns3.sphere.ad.jp2015-07-05 → 2026-05-10 · 2 obs
● 2015-07-05 05:13:00
● 2026-05-10 16:54:08
●NSns4.sphere.ad.jp2015-07-05 → 2026-05-10 · 2 obs
● 2015-07-05 05:13:00
● 2026-05-10 16:54:08
●MXtuk.co.jp2015-07-05 → 2026-05-10 · 2 obs
● 2015-07-05 05:13:00
● 2026-05-10 16:54:08
●A203.138.27.322015-07-05 → 2026-05-10 · 2 obs
● 2015-07-05 05:13:00
● 2026-05-10 16:54:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
tuk.co.jpns3.sphere.ad.jp, ns4.sphere.ad.jp-

✅ Authoritative Response

Server:202.239.113.22

NS records: ns3.sphere.ad.jp, ns4.sphere.ad.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tuk.co.jp (unsigned zone)

⏱️ Timing

Total: 1569ms | Queries: -

📄 Records

TypeCountSample Data
A1203.138.27.32
NS2ns4.sphere.ad.jp, ns3.sphere.ad.jp
MX1tuk.co.jp (pri: 10)
TXT1v=spf1 include:fmx.etius.jp +ip4:203.138
SOA1ns3.sphere.ad.jp dns.sphere.ad.jp

Analysis

Mail Server Role

For tuk.co.jp, the mail server is tuk.co.jp.

IP Addresses

tuk.co.jp resolves to one IP number: 203.138.27.32.

Name Servers

tuk.co.jp is delegated to two name servers ns3.sphere.ad.jp and ns4.sphere.ad.jp.

tuk.co.jp shares the same name server setup as other domains, for instance wdenko.com, canon-net.com, katoukoumuten.co.jp, www.kjr.co.jp and ps22.test2.suite2.arena.ne.jp.

Host names with one IP number:

ns3.sphere.ad.jp points to 202.239.113.22

ns4.sphere.ad.jp points to 202.239.113.30

Mail Servers

tuk.co.jp is served by a single mail server, tuk.co.jp.

tuk.co.jp resolves to IP 203.138.27.32.