| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns51.gullestrupnet.dk | 82.165.189.144 | gn51.gullestrupnet.dk | AS8560 IONOS SE |
| ns52.gullestrupnet.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 82.165.189.144 | 14400s | gn51.gullestrupnet.dk | AS8560 | IONOS SE | 82.165.0.0/16 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 14400s | mail.net2mail.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| 30 | 14400s | backupmail.gullestrupnet.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 82.165.189.144 |
| 🔶 Autoconfig | 82.165.189.144 |
| TXT Record |
|---|
| v=spf1 ip4:82.165.203.134 ip4=82.165.189.144 +a +mx -all |
| Policy | Record (net2mail.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:82.165.203.134 ip4=82.165.189.144 +a +mx -all |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025103105 |
| Primary NS (MNAME) | ns51.gullestrupnet.dk |
| Responsible (RNAME) | hostmaster@gullestrupnet.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 10800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-07-03 10:45:29 | 450ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-27 09:32:19 | 3646ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-24 09:55:37 | 1159ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-24 03:36:19 | 1138ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 21:50:54 | 929ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-20 15:06:05 | 2796ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-20 05:22:39 | 981ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-17 14:33:51 | 1361ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |