| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.103.123.224 | 43200s | 5.103.123.224.dhcp.fibianet.dk | AS44869 | FIBIA P/S | 5.103.0.0/16 | 🇩🇰 Denmark | Holbæk |
| 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 | 2026081101 |
| 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 17:34:06 | 2663ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 12:38:48 | 513ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-15 21:40:00 | 538ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-08 10:40:58 | 16603ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-18 13:10:59 | 550ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 09:39:21 | 639ms | 2 NS 1 A 0 MX | 🔒 Secure | View |