mx.a-head.jp - robtex.com
mx.a-head.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.122.206.94🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
a-head.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.122.205.38🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| NS | ns2.namedserver.net ⭐ | ||||||
| NS | ns.namedserver.net | ||||||
| MX | mx.a-head.jp ⭐ | ||||||
| TXT | v=spf1 include:_spf.shared-server.net ~all | ||||||
| SOA | ns.namedserver.netroot@namedserver.net serial=2698647224 | ||||||
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A153.122.206.942026-04-10 → 2026-08-06 · 3 obs
○ 2016-04-27 09:54:02
● 2026-04-10 02:09:50
● 2026-08-06 00:15:14
● 2026-04-10 02:09:50
● 2026-08-06 00:15:14
○A211.13.204.142015-07-08 → 2016-04-27 · 4 obs
● 2015-07-08 09:30:42
● 2016-04-27 09:54:02
○ 2026-04-10 02:09:50
○ 2026-08-06 00:15:14
● 2016-04-27 09:54:02
○ 2026-04-10 02:09:50
○ 2026-08-06 00:15:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, g.dns.jp, d.dns.jp, c.dns.jp... | - |
| a-head.jp | ns2.namedserver.net, ns.namedserver.net | - |
✅ Authoritative Response
Server:157.120.113.212
NS records: ns2.namedserver.net, ns.namedserver.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-head.jp (unsigned zone)
⏱️ Timing
Total: 2291ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.122.206.94 |
Analysis
Mail Server Role
Mail for a-head.jp is routed through the mail server mx.a-head.jp.
IP Addresses
mx.a-head.jp has exactly one IP address — 153.122.206.94.
mx.kaisei-hibari.jp, mx.fureai-d.com, mx.e-nihon.co.jp plus two other host names have IP numbers in common with mx.a-head.jp.