kc-u.jp - robtex.com

kc-u.jp

DNSSEC⚠️ Not signed
A164.46.109.81🇯🇵 AS4694164.46.64.0/18
PTRdeer-blue-0a434c3f19d6042c.znlc.jp
NSns-1690.awsdns-19.co.uk ⭐
A2600:9000:5306:9a00::1Amazon2600:9000:5306::/48 - CloudFront
A205.251.198.154🇺🇸 Amazon205.251.198.0/24 prefix
NSns-1521.awsdns-62.org
A2600:9000:5305:f100::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
A205.251.197.241🇺🇸 Amazon205.251.197.0/24 prefix
NSns-184.awsdns-23.com
A2600:9000:5300:b800::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
A205.251.192.184🇺🇸 Amazon205.251.192.0/24 prefix
NSns-572.awsdns-07.net
A2600:9000:5302:3c00::1Amazon2600:9000:5302::/48 - CloudFront
A205.251.194.60Amazon205.251.194.0/24 prefix
MXmail.kc-u.jp ⭐
A164.46.109.81🇯🇵 AS4694164.46.64.0/18
PTRdeer-blue-0a434c3f19d6042c.znlc.jp
TXTv=spf1 ip4:164.46.109.81 mx ~all
SOAns-1690.awsdns-19.co.ukawsdns-hostmaster@amazon.com serial=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=1778694303
WOT: SAFE (64/100)

Subdomains

mail.kc-u.jp

Same first word

kc-u.jp

Similar names

uk-c.co.uk
uk-c.de
c-uk.net
c-uk.com
uk-c.co.jp
uk-c.com
uc-k.net
c-ku.com
c-uk.pl
c-ku.de
cu-k.cn

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSns-1521.awsdns-62.orgns-1690.awsdns-19.co.ukns-184.awsdns-23.comns-572.awsdns-07.netnsas3.firstserver.ne.jpnsas4.firstserver.ne.jpMXmail.kc-u.jpmx1.firstserver.ne.jpmx2.firstserver.ne.jpA164.46.109.81203.137.81.206
●NSns-1521.awsdns-62.org2026-04-29 → 2026-05-13 · 3 obs
○ 2017-01-01 02:34:06
● 2026-04-29 01:29:08
● 2026-05-13 17:58:52
●NSns-1690.awsdns-19.co.uk2026-04-29 → 2026-05-13 · 3 obs
○ 2017-01-01 02:34:06
● 2026-04-29 01:29:08
● 2026-05-13 17:58:52
●NSns-184.awsdns-23.com2026-04-29 → 2026-05-13 · 3 obs
○ 2017-01-01 02:34:06
● 2026-04-29 01:29:08
● 2026-05-13 17:58:52
●NSns-572.awsdns-07.net2026-04-29 → 2026-05-13 · 3 obs
○ 2017-01-01 02:34:06
● 2026-04-29 01:29:08
● 2026-05-13 17:58:52
○NSnsas3.firstserver.ne.jp2015-05-30 → 2017-01-01 · 4 obs
● 2015-05-30 15:46:10
● 2017-01-01 02:34:06
○ 2026-04-29 01:29:08
○ 2026-05-13 17:58:52
○NSnsas4.firstserver.ne.jp2015-05-30 → 2017-01-01 · 4 obs
● 2015-05-30 15:46:10
● 2017-01-01 02:34:06
○ 2026-04-29 01:29:08
○ 2026-05-13 17:58:52
●MXmail.kc-u.jp2015-05-30 → 2026-05-13 · 2 obs
● 2015-05-30 15:46:10
● 2026-05-13 17:58:52
○MXmx1.firstserver.ne.jp2015-05-30 → 2017-01-01 · 4 obs
● 2015-05-30 15:46:10
● 2017-01-01 02:34:06
○ 2026-04-29 01:29:08
○ 2026-05-13 17:58:52
○MXmx2.firstserver.ne.jp2015-05-30 → 2017-01-01 · 4 obs
● 2015-05-30 15:46:10
● 2017-01-01 02:34:06
○ 2026-04-29 01:29:08
○ 2026-05-13 17:58:52
●A164.46.109.812026-04-29 → 2026-05-13 · 3 obs
○ 2017-01-01 02:34:06
● 2026-04-29 01:29:08
● 2026-05-13 17:58:52
○A203.137.81.2062015-05-30 → 2017-01-01 · 4 obs
● 2015-05-30 15:46:10
● 2017-01-01 02:34:06
○ 2026-04-29 01:29:08
○ 2026-05-13 17:58:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
kc-u.jpns-1690.awsdns-19.co.uk, ns-184.awsdns-23.com, ns-572.awsdns-07.net, ns-1521.awsdns-62.org-

✅ Authoritative Response

Server:205.251.197.241

NS records: ns-1690.awsdns-19.co.uk, ns-184.awsdns-23.com, ns-572.awsdns-07.net, ns-1521.awsdns-62.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 3729ms | Queries: -

📄 Records

TypeCountSample Data
A1164.46.109.81
NS4ns-1521.awsdns-62.org, ns-1690.awsdns-19.co.uk...
MX1mail.kc-u.jp (pri: 100)
TXT1v=spf1 ip4:164.46.109.81 mx ~all
SOA1ns-1690.awsdns-19.co.uk awsdns-hostmaste

Analysis

Hierarchy

The parent of mail.kc-u.jp is kc-u.jp.

IP Addresses

kc-u.jp points to IP number: 164.46.109.81.

Other host names, for instance mail.kc-u.jp share IP numbers with kc-u.jp.

Name Servers

kc-u.jp is delegated to four name servers: ns-184.awsdns-23.com, ns-572.awsdns-07.net, ns-1521.awsdns-62.org and ns-1690.awsdns-19.co.uk.

Host names with two IP numbers: ns-184.awsdns-23.com points to 2600:9000:5300:b800::1 and 205.251.192.184; ns-572.awsdns-07.net points to 2600:9000:5302:3c00::1 and 205.251.194.60; ns-1521.awsdns-62.org points to 2600:9000:5305:f100::1 and 205.251.197.241; ns-1690.awsdns-19.co.uk points to 2600:9000:5306:9a00::1 and 205.251.198.154.

Mail Servers

kc-u.jp is handled by a single mail server, mail.kc-u.jp.

The mail server setup for kc-u.jp mirrors that of other domains, for instance mail.kc-u.jp.

mail.kc-u.jp points to a single IP: 164.46.109.81.