mail.world-bt.com - robtex.com
mail.world-bt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 27.133.240.172🇯🇵 OCN27.133.240.0/22 Directorz Co.,Ltd. | ||||||
| PTR | tk9-n5z-567-24-r350.savacus.net | ||||||
world-bt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 27.133.240.172🇯🇵 OCN27.133.240.0/22 Directorz Co.,Ltd. | ||||||
| NS | ns.world-bt.com ⭐ ⚠️ Not in parent delegation | ||||||
| NS | ns1.mp-dns2.net ⚠️ Not in zone NS records | ||||||
| NS | ns2.mp-dns2.net ⚠️ Not in zone NS records | ||||||
| MX | mail.world-bt.com ⭐ | ||||||
| TXT | v=spf1 +a +mx -all | ||||||
| SOA | ns.world-bt.comsupport@marketingplus.jp serial=1729148396 | ||||||
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
○A182.161.77.752015-05-21 → 2016-05-02 · 4 obs
● 2015-05-21 13:39:30
● 2016-05-02 08:39:24
○ 2026-05-03 12:51:18
○ 2026-08-15 09:44:14
● 2016-05-02 08:39:24
○ 2026-05-03 12:51:18
○ 2026-08-15 09:44:14
●A27.133.240.1722026-05-03 → 2026-08-15 · 3 obs
○ 2016-05-02 08:39:24
● 2026-05-03 12:51:18
● 2026-08-15 09:44:14
● 2026-05-03 12:51:18
● 2026-08-15 09:44:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net... | - |
| world-bt.com | ns1.mp-dns2.net, ns2.mp-dns2.net | - |
✅ Authoritative Response
Server:27.133.240.173
NS records: ns1.mp-dns2.net, ns2.mp-dns2.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for world-bt.com (unsigned zone)
⏱️ Timing
Total: 992ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 27.133.240.172 |
Analysis
Mail Server Role
Mail for world-bt.com is routed through the mail server mail.world-bt.com.
IP Addresses
mail.world-bt.com has exactly one IP address — 27.133.240.172.
stepup2005.com, ns.care-koubou.jp, ns.igoschool.net plus two other host names have IP numbers in common with mail.world-bt.com.