| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.103.131.248 | 43200s | 5.103.131.248.static.fibianet.dk | AS44869 | FIBIA P/S | 5.103.0.0/16 | 🇩🇰 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 | |
|---|---|---|---|---|
| 2026-08-12 20:54:02 | 847ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 23:20:47 | 2471ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-13 05:34:40 | 648ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-27 19:33:09 | 507ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-24 14:22:53 | 1100ms | 2 NS 1 A 1 MX | ⚠️ Bogus | View |
| 2026-06-21 17:36:08 | 357ms | 0 NS 0 A 0 MX | 🔒 Secure | View |
| 2026-06-21 08:02:37 | 792ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 17:21:07 | 1135ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 03:24:25 | 854ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-19 23:55:05 | 550ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-18 06:55:47 | 578ms | 2 NS 1 A 0 MX | 🔒 Secure | View |