koshiku.com - robtex.com

koshiku.com

DNSSEC⚠️ Not signed
A183.90.231.18🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv217.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
MXkoshiku.com ⭐
A183.90.231.18🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv217.xbiz.ne.jp
TXTv=spf1 +a:sv217.xbiz.ne.jp +a:koshiku.com +mx include:spf.sender.xserver.jp ~all
SOAns1.xbiz.ne.jproot@xbiz.ne.jp serial=0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774460487

MX for

koshiku.com

Same first word

koshiku.com

Similar names

shkouki.com
kokhuis.com
kokhuis.net
koushki.com
shikoku.tv
koushik.com
shikoku.de
kishoku.com
koushik.net
shikoku.co.jp
koushik.co.in
kukoshi.com
kikusho.com
shikoku.fr
shikoku.ac.jp
kokushi.org
shikoku.sakura.ne.jp
shikoku.ne.jp
shikoku.org.uk
shikoku.me

DNS History

11 records (5 active, 6 former)

201820192020202120222023202420252026NSns1.xbiz.ne.jpns2.xbiz.ne.jpns3.xbiz.ne.jpns6.cpi.ad.jpns7.cpi.ad.jpMXkoshiku.comvlmx20.secure.ne.jpvlmx21.secure.ne.jpvlmx22.secure.ne.jpA183.90.231.18150.60.157.183
●NSns1.xbiz.ne.jp2026-02-16 → 2026-03-25 · 3 obs
○ 2017-05-10 09:30:00
● 2026-02-16 03:05:30
● 2026-03-25 17:50:26
●NSns2.xbiz.ne.jp2026-02-16 → 2026-03-25 · 3 obs
○ 2017-05-10 09:30:00
● 2026-02-16 03:05:30
● 2026-03-25 17:50:26
●NSns3.xbiz.ne.jp2026-02-16 → 2026-03-25 · 3 obs
○ 2017-05-10 09:30:00
● 2026-02-16 03:05:30
● 2026-03-25 17:50:26
○NSns6.cpi.ad.jp2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
○NSns7.cpi.ad.jp2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
●MXkoshiku.com2026-02-16 → 2026-03-25 · 3 obs
○ 2017-05-10 09:30:00
● 2026-02-16 03:05:30
● 2026-03-25 17:50:26
○MXvlmx20.secure.ne.jp2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
○MXvlmx21.secure.ne.jp2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
○MXvlmx22.secure.ne.jp2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
○A150.60.157.1832017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:30:00
○ 2026-02-16 03:05:30
○ 2026-03-25 17:50:26
●A183.90.231.182026-02-16 → 2026-03-25 · 3 obs
○ 2017-05-10 09:30:00
● 2026-02-16 03:05:30
● 2026-03-25 17:50:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...-
koshiku.comns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp-

✅ Authoritative Response

Server:157.112.182.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koshiku.com (unsigned zone)

⏱️ Timing

Total: 923ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.231.18
NS3ns3.xbiz.ne.jp, ns2.xbiz.ne.jp...
MX1koshiku.com (pri: 0)
TXT1v=spf1 +a:sv217.xbiz.ne.jp +a:koshiku.co
SOA1ns1.xbiz.ne.jp root.xbiz.ne.jp

Analysis

Mail Server Role

For koshiku.com, the mail server is koshiku.com.

IP Addresses

koshiku.com resolves to one IP number: 183.90.231.18.

other host names including matsudasan.com, mail.crystalprocess.co.jp, www.kanen.org, kanen.org and momijinoga.jp share IP numbers with koshiku.com.

Name Servers

koshiku.com is delegated to three name servers ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.

koshiku.com at least partially shares name servers with other domains, for instance absbowling.co.jp, onishi-g.com, akada.jp, asahi-b-p.co.jp and studyup.jp.

Host names with one IP number: ns1.xbiz.ne.jp points to 157.112.182.247; ns2.xbiz.ne.jp points to 35.76.79.244; ns3.xbiz.ne.jp points to 157.112.191.237.

Mail Servers

koshiku.com is served by a single mail server, koshiku.com.

koshiku.com resolves to IP 183.90.231.18.