| 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.nv-net.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 |
| 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 (nv-net.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 | 2020052503 |
| Primary NS (MNAME) | ns51.gullestrupnet.dk |
| Responsible (RNAME) | bolignet@fsb.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 10800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-28 08:55:26 | 9504ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-07-03 09:32:02 | 13784ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-27 23:45:11 | 1251ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-25 14:02:05 | 3200ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-25 12:17:54 | 797ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-23 19:32:54 | 1684ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-21 22:45:52 | 1179ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 17:27:40 | 667ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-17 14:23:13 | 1401ms | 2 NS 1 A 2 MX | 🔓 Insecure | View |