| 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 | 86400s | gn51.gullestrupnet.dk | AS8560 | IONOS SE | 82.165.0.0/16 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mail.atwh.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| 30 | 86400s | backupmail.gullestrupnet.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| TXT Record |
|---|
| v=spf1 ip4:82.165.203.134 ip4=82.165.189.144 +a +mx -all |
| Policy | Record (atwh.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 | 2021031003 |
| Primary NS (MNAME) | ns51.gullestrupnet.dk |
| Responsible (RNAME) | bjarne@atwh.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 10800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-09-01 12:32:55 | 1692ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-24 03:38:29 | 2396ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-21 15:35:12 | 934ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 20:40:05 | 828ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-16 13:54:11 | 2108ms | 2 NS 1 A 2 MX | ⚠️ Bogus | View |
| 2026-06-16 13:49:34 | 2525ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |