mx.educul.co.jp - robtex.com
mx.educul.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.122.206.94🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
educul.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.122.205.50🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| NS | ns3.ymc.ne.jp ⭐ | ||||||
| NS | ns4.ymc.ne.jp | ||||||
| MX | mx.educul.co.jp ⭐ | ||||||
| TXT | v=spf1 include:_spf.shared-server.net ~all | ||||||
| SOA | ns3.ymc.ne.jproot@ymc.ne.jp serial=2698656468 | ||||||
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A153.122.206.942026-03-28 → 2026-04-03 · 3 obs
○ 2017-03-19 03:04:56
● 2026-03-28 16:38:22
● 2026-04-03 15:54:54
● 2026-03-28 16:38:22
● 2026-04-03 15:54:54
○A211.13.204.142017-03-19 → 2017-03-19 · 3 obs
● 2017-03-19 03:04:56
○ 2026-03-28 16:38:22
○ 2026-04-03 15:54:54
○ 2026-03-28 16:38:22
○ 2026-04-03 15:54:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, d.dns.jp, b.dns.jp, c.dns.jp... | - |
| educul.co.jp | ns4.ymc.ne.jp, ns3.ymc.ne.jp | - |
✅ Authoritative Response
Server:157.120.112.215
NS records: ns4.ymc.ne.jp, ns3.ymc.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for educul.co.jp (unsigned zone)
⏱️ Timing
Total: 1442ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.122.206.94 |
Analysis
Mail Server Role
mx.educul.co.jp functions as a mail server for educul.co.jp.
IP Addresses
mx.educul.co.jp resolves to one IP number: 153.122.206.94.
other host names including mx.kofune.co.jp, mx.acconsulent.com, mx.st-int.com, mx.asahi-cb.co.jp and mx.ad-fix.co.jp share IP numbers with mx.educul.co.jp.