| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.104.3.9 | 600s | 87.104.3.9.static.fibianet.dk | AS44869 | FIBIA P/S | 87.104.0.0/18 | 🇩🇰 Denmark | Sakskøbing |
| 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 | 2026081401 |
| 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 | |
|---|---|---|---|---|
| 2026-08-14 22:40:57 | 652ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 13:48:39 | 601ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-23 18:28:12 | 4543ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-22 17:34:49 | 2409ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 11:06:53 | 911ms | 3 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-06-17 10:58:19 | 530ms | 3 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-06-17 10:56:21 | 720ms | 3 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-06-17 10:55:23 | 1546ms | 3 NS 1 A 0 MX | 🔓 Insecure | View |