dns.study.co.jp - robtex.com

dns.study.co.jp

DNSSEC⚠️ Not signed
A183.181.81.91🇯🇵 XSERVER-AS183.181.80.0/22 XSERVER Inc.
PTRsv10410.xserver.jp

study.co.jp

DNSSEC⚠️ Not signed
A183.181.81.91🇯🇵 XSERVER-AS183.181.80.0/22 XSERVER Inc.
NSns1.xserver.jp ⭐
NSns2.xserver.jp
NSns3.xserver.jp
NSns4.xserver.jp
NSns5.xserver.jp
MXstudy.co.jp ⭐
TXTv=spf1 +a:sv10410.xserver.jp +a:study.co.jp +mx include:spf.sender.xserver.jp...
SOAns1.xserver.jproot@xserver.jp serial=0

Previously NS for

study.co.jp

Same first word

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dns.tools
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dns.com.tw
dns.hk
dns.dvrdns.org
dns.pub
dns.ie
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dns.la
dns.noip.me
dns.to
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dns.ht
dns.idf.il
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dns.cn
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dns.ac.pr
dns.ug
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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A183.181.81.91133.130.68.188
○A133.130.68.1882017-04-09 → 2017-04-09 · 2 obs
● 2017-04-09 08:34:26
○ 2026-03-27 18:53:38
●A183.181.81.912026-03-27 → 2026-03-27 · 2 obs
○ 2017-04-09 08:34:26
● 2026-03-27 18:53:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, b.dns.jp, d.dns.jp...-
study.co.jpns5.xserver.jp, ns4.xserver.jp, ns3.xserver.jp, ns2.xserver.jp...11 records

✅ Authoritative Response

Server:202.226.36.164

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 745ms | Queries: -

📄 Records

TypeCountSample Data
A1183.181.81.91

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)

Analysis

IP Addresses

dns.study.co.jp points to a single IP number: 183.181.81.91.

other host names for instance alto-ind.jp, mx.study.co.jp, mail.ftp02.com, kogatomatofarm.com and nuppuku.com share IP numbers with dns.study.co.jp.