| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.186.138.176 | 43200s | 5.186.138.176.dhcp.fibianet.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-11 13:54:08 | 1786ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 21:19:21 | 708ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-12 13:36:14 | 628ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-28 22:52:57 | 496ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-28 07:03:22 | 510ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-24 19:57:46 | 422ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-22 02:44:39 | 991ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 02:26:40 | 3363ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 20:49:44 | 543ms | 2 NS 1 A 0 MX | 🔒 Secure | View |