mx.study.co.jp - robtex.com
mx.study.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.181.81.91🇯🇵 XSERVER-AS183.181.80.0/22 XSERVER Inc. | ||||||
| PTR | sv10410.xserver.jp | ||||||
study.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.181.81.91🇯🇵 XSERVER-AS183.181.80.0/22 XSERVER Inc. | ||||||
| NS | ns1.xserver.jp ⭐ | ||||||
| NS | ns2.xserver.jp | ||||||
| NS | ns3.xserver.jp | ||||||
| NS | ns4.xserver.jp | ||||||
| NS | ns5.xserver.jp | ||||||
| MX | study.co.jp ⭐ | ||||||
| TXT | v=spf1 +a:sv10410.xserver.jp +a:study.co.jp +mx include:spf.sender.xserver.jp... | ||||||
| SOA | ns1.xserver.jproot@xserver.jp serial=0 | ||||||
Previously MX for
Same first word
Similar names
xm.by |
xm.world |
xm.lt |
xm.com.ua |
xm.ru |
xm.de |
xm.cl |
xm.sk |
xm.se |
xm.hu |
xm.com.co |
xm.africa |
xm.fi |
xm.is |
xm.am |
xm.money |
xm.be |
xm.cz |
xm.hk.cn |
xm.fj.cn |
xm.pl |
xm.vn.ua |
xm.house |
xm.mk |
xm.com |
DNS History
1 record (1 active, 0 former)
●A183.181.81.912026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 05:00:04
● 2026-03-28 05:00:06
● 2026-03-28 05:00:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| study.co.jp | ns4.xserver.jp, ns3.xserver.jp, ns2.xserver.jp, ns5.xserver.jp... | 11 records |
✅ Authoritative Response
Server:202.226.36.247
NS records: ns4.xserver.jp, ns3.xserver.jp, ns2.xserver.jp, ns5.xserver.jp, ns1.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for study.co.jp (unsigned zone)
⏱️ Timing
Total: 905ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.81.91 |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
IP Addresses
mx.study.co.jp resolves to a single IP: 183.181.81.91.
Other host names, for instance shibata-s.com, mail.shibata-s.com, mail.office-at.com, ns.ftp02.com and study.co.jp share IP numbers with mx.study.co.jp.