kf1-tk.jp - robtex.com

kf1-tk.jp

DNSSEC⚠️ Not signed
A183.90.232.16🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv1215.xserver.jp
NSns1.xserver.jp
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXkf1-tk.jp
A183.90.232.16🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv1215.xserver.jp
TXTv=spf1 +a:sv1215.xserver.jp +a:kf1-tk.jp +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@sv0.xserver.jp serial=0

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=1781825402

MX for

Same first word

DNS History

11 records (7 active, 4 former)

20162017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpdns01.server-cowboy.netdns02.server-cowboy.netMXkf1-tk.jpmail.kf1-tk.jpA183.90.232.16210.152.132.23
NSdns01.server-cowboy.net2015-05-22 → 2015-10-10 · 4 obs
● 2015-05-22 06:00:42
● 2015-10-10 13:47:02
○ 2015-12-28 07:29:18
○ 2026-06-18 23:36:20
NSdns02.server-cowboy.net2015-05-22 → 2015-10-10 · 4 obs
● 2015-05-22 06:00:42
● 2015-10-10 13:47:02
○ 2015-12-28 07:29:18
○ 2026-06-18 23:36:20
NSns1.xserver.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
NSns2.xserver.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
NSns3.xserver.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
NSns4.xserver.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
NSns5.xserver.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
MXkf1-tk.jp2015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
MXmail.kf1-tk.jp2015-05-22 → 2015-10-10 · 4 obs
● 2015-05-22 06:00:42
● 2015-10-10 13:47:02
○ 2015-12-28 07:29:18
○ 2026-06-18 23:36:20
A183.90.232.162015-12-28 → 2026-06-18 · 3 obs
○ 2015-10-10 13:47:02
● 2015-12-28 07:29:18
● 2026-06-18 23:36:20
A210.152.132.232015-05-22 → 2015-10-10 · 4 obs
● 2015-05-22 06:00:42
● 2015-10-10 13:47:02
○ 2015-12-28 07:29:18
○ 2026-06-18 23:36:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
kf1-tk.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ Authoritative Response

Server:202.226.36.164

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kf1-tk.jp (unsigned zone)

⏱️ Timing

Total: 1230ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.232.16
NS5ns1.xserver.jp, ns5.xserver.jp...
MX1kf1-tk.jp (pri: 0)
TXT1v=spf1 +a:sv1215.xserver.jp +a:kf1-tk.jp
SOA1ns1.xserver.jp root.sv0.xserver.jp

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Mail Server Role

kf1-tk.jp serves as a mail server for kf1-tk.jp.

IP Addresses

kf1-tk.jp has exactly one IP address — 183.90.232.16.

cosmooil.co.jp, www.usanambu.com, mail.navigate-jp.com plus two other host names have IP numbers in common with kf1-tk.jp.

Name Servers

Five name servers handle delegation for kf1-tk.jp: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

There is at least partial name server overlap between kf1-tk.jp and other domains — kinoko-house.com, eisen.jp, bushin.jp and two more among them.

These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names carrying three IP numbers:

The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names resolving to a single IP address:

ns2.xserver.jp has the IP address 35.72.43.26.

ns3.xserver.jp has the IP address 202.226.36.247.

Mail Servers

kf1-tk.jp uses exactly one mail server, which is kf1-tk.jp.

kf1-tk.jp directs to just one IP number, 183.90.232.16.