tk1.co.jp - robtex.com

tk1.co.jp

DNSSEC⚠️ Not signed
A183.90.231.86🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv305.xbiz.ne.jp
NSns1.xbiz.ne.jp ⭐
A157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
PTRns1.xbiz.ne.jp
NSns2.xbiz.ne.jp
A35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xbiz.ne.jp
NSns3.xbiz.ne.jp
A157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc.
PTRns3.xbiz.ne.jp
MXtk1.co.jp ⭐
A183.90.231.86🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv305.xbiz.ne.jp
TXTv=spf1 +a:sv305.xbiz.ne.jp +a:tk1.co.jp +mx include:spf.sender.xserver.jp ~all
SOAns1.xbiz.ne.jproot@xbiz.ne.jp serial=0

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (61/100)
WOT: SAFE (58/100)

MX for

tk1.co.jp

Same first word

tk1.in
tk1.com
tk1.biz
tk1.net
tk1.co.jp
tk1.co.uk
tk1.pl
tk1.ir
tk1.es
tk1.top
tk1.ru
tk1.us
tk1.de
tk1.mom
tk1.cam
tk1.games
tk1.co
tk1.me
tk1.eu
tk1.bet
tk1.game
tk1.shop
tk1.jp

Similar names

t1k.de
t1k.be
kt1.io
1kt.org
1kt.com
kt1.com
kt1.net
t1k.fr
t1k.jp
t1k.us
1tk.org
t1k.net
1tk.kz
kt1.at
1kt.eu
1kt.top
k1t.net
1tk.ai
k1t.nl
kt1.org
1tk.games
1tk.net
kt1.eu
t1k.org
1tk.xyz
k1t.space
t1k.ru
kt1.biz
1kt.jp
t1k.in
kt1.tv
1kt.net
k1t.de
k1t.cn
t1k.com
kt1.cn
t1k.se
1kt.de
k1t.com
kt1.co
kt1.de
1tk.ru
k1t.dk
k1t.kr
1kt.cn
1tk.com
k1t.nyc
kt1.jp
1tk.de

DNS History

12 records (5 active, 7 former)

20162017201820192020202120222023202420252026NSns1.xbiz.ne.jpns2.xbiz.ne.jpns3.xbiz.ne.jpdns01.ktk.gr.jpdns02.ktk.gr.jpns1.ktk-sol.co.jpns2.ktk-sol.co.jpMXtk1.co.jpmail-rgrey.ktk.gr.jpmx.ktk-sol.co.jpA183.90.231.86122.219.254.104
○NSdns01.ktk.gr.jp2015-08-01 → 2016-04-19 · 4 obs
● 2015-08-01 01:44:28
● 2016-04-19 14:50:46
○ 2016-07-21 23:43:48
○ 2026-07-24 16:31:20
○NSdns02.ktk.gr.jp2015-08-01 → 2016-04-19 · 4 obs
● 2015-08-01 01:44:28
● 2016-04-19 14:50:46
○ 2016-07-21 23:43:48
○ 2026-07-24 16:31:20
○NSns1.ktk-sol.co.jp2016-07-21 → 2016-12-19 · 5 obs
○ 2016-04-19 14:50:46
● 2016-07-21 23:43:48
● 2016-12-19 10:47:10
○ 2026-06-24 09:53:02
○ 2026-07-24 16:31:20
●NSns1.xbiz.ne.jp2026-06-24 → 2026-07-24 · 3 obs
○ 2016-12-19 10:47:10
● 2026-06-24 09:53:02
● 2026-07-24 16:31:20
○NSns2.ktk-sol.co.jp2016-07-21 → 2016-12-19 · 5 obs
○ 2016-04-19 14:50:46
● 2016-07-21 23:43:48
● 2016-12-19 10:47:10
○ 2026-06-24 09:53:02
○ 2026-07-24 16:31:20
●NSns2.xbiz.ne.jp2026-06-24 → 2026-07-24 · 3 obs
○ 2016-12-19 10:47:10
● 2026-06-24 09:53:02
● 2026-07-24 16:31:20
●NSns3.xbiz.ne.jp2026-06-24 → 2026-07-24 · 3 obs
○ 2016-12-19 10:47:10
● 2026-06-24 09:53:02
● 2026-07-24 16:31:20
○MXmail-rgrey.ktk.gr.jp2015-08-01 → 2016-11-03 · 4 obs
● 2015-08-01 01:44:28
● 2016-11-03 04:52:14
○ 2016-12-19 10:47:10
○ 2026-07-24 16:31:20
○MXmx.ktk-sol.co.jp2016-12-19 → 2016-12-19 · 4 obs
○ 2016-11-03 04:52:14
● 2016-12-19 10:47:10
○ 2026-06-24 09:53:02
○ 2026-07-24 16:31:20
●MXtk1.co.jp2026-06-24 → 2026-07-24 · 3 obs
○ 2016-12-19 10:47:10
● 2026-06-24 09:53:02
● 2026-07-24 16:31:20
○A122.219.254.1042015-08-01 → 2016-12-19 · 4 obs
● 2015-08-01 01:44:28
● 2016-12-19 10:47:10
○ 2026-06-24 09:53:02
○ 2026-07-24 16:31:20
●A183.90.231.862026-06-24 → 2026-07-24 · 3 obs
○ 2016-12-19 10:47:10
● 2026-06-24 09:53:02
● 2026-07-24 16:31:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
tk1.co.jpns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp3 records

✅ Authoritative Response

Server:157.112.182.247

NS records: ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tk1.co.jp (unsigned zone)

⏱️ Timing

Total: 1083ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.231.86
NS3ns1.xbiz.ne.jp, ns3.xbiz.ne.jp...
MX1tk1.co.jp (pri: 0)
TXT1v=spf1 +a:sv305.xbiz.ne.jp +a:tk1.co.jp
SOA1ns1.xbiz.ne.jp root.xbiz.ne.jp

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp)

Analysis

Mail Server Role

tk1.co.jp handles its own mail, functioning as its own mail server.

IP Addresses

tk1.co.jp resolves to just one IP address, 183.90.231.86.

Two other host names, along with preca.jp, iwamizawa-park.com and giftcard.jp, also share IP numbers with tk1.co.jp.

Name Servers

tk1.co.jp is served by three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.

The name servers of tk1.co.jp overlap at least partially with those of other domains — among them telepark.co.jp, ad-na.com, webibaraki.net and two more.

ns1.xbiz.ne.jp has IP address 157.112.182.247, ns2.xbiz.ne.jp has IP address 35.76.79.244 and ns3.xbiz.ne.jp has IP address 157.112.191.237 — one address each.

Mail Servers

tk1.co.jp is served by just one mail server: tk1.co.jp.

tk1.co.jp resolves to 183.90.231.86 and no other IP number.