mail.cat.nu - robtex.com

mail.cat.nu

DNSSEC⚠️ Not signed
A160.16.205.133🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRda65.willnet.ad.jp

cat.nu

DNSSEC⚠️ Not signed
A160.16.205.133🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
NSns1.willnet.ne.jp ⭐ ⚠️ Not in parent delegation
NSns1.dnsserver-jp.net ⚠️ Not in zone NS records
NSns2.dnsserver-jp.net ⚠️ Not in zone NS records
NSns2.willnet.ne.jp ⚠️ Not in parent delegation
MXmail.cat.nu(10)
TXTv=spf1 a mx include:spf01.willnet.ad.jp ~all
SOAns1.willnet.ne.jphostmaster@willnet.ne.jp 2026-01-23 #2

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A160.16.205.133123.108.7.150
○A123.108.7.1502015-07-06 → 2016-12-28 · 4 obs
● 2015-07-06 08:52:44
● 2016-12-28 13:37:00
○ 2026-03-09 03:03:32
○ 2026-04-06 02:30:24
●A160.16.205.1332026-03-09 → 2026-04-06 · 3 obs
○ 2016-12-28 13:37:00
● 2026-03-09 03:03:32
● 2026-04-06 02:30:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nud.ns.nu, m.ns.nu, y.ns.nu, z.ns.nu...-
cat.nuns1.dnsserver-jp.net, ns2.dnsserver-jp.net-

✅ Authoritative Response

Server:163.43.103.130

NS records: ns1.dnsserver-jp.net, ns2.dnsserver-jp.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cat.nu (unsigned zone)

⏱️ Timing

Total: 1841ms | Queries: -

📄 Records

TypeCountSample Data
A1160.16.205.133

Analysis

IP Addresses

mail.cat.nu resolves to one IP number: 160.16.205.133.

other host names including joumon.co.jp, saitouboueki.com, www.joumon.co.jp, mail.fun-co.com and himuka.tv share IP numbers with mail.cat.nu.