| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns3.supportcenter.dk | 87.54.32.150 | — | AS3292 TDC Holding A/S |
| ns4.supportcenter.dk | 2.106.7.200 | ns4.supportcenter.dk | AS3292 TDC Holding A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.9.23.10 | 3600s | static.10.23.9.5.clients.your-server.de | AS24940 | Hetzner Online GmbH | 5.9.0.0/16 | 🇩🇪 Germany | Falkenstein |
| 5.9.23.9 | 3600s | static.9.23.9.5.clients.your-server.de | AS24940 | Hetzner Online GmbH | 5.9.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (aarhuskat-gym.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.aarhuskat-gym.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 725 |
| Primary NS (MNAME) | ns3.supportcenter.dk |
| Responsible (RNAME) | hostmaster@supportcenter.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-31 21:31:29 | 755ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-27 09:46:11 | 854ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-23 03:12:01 | 3511ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-22 02:43:05 | 624ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-16 22:32:21 | 573ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-15 19:38:38 | 2138ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-10 04:54:12 | 3033ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-08-09 04:16:44 | 3794ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-23 05:55:37 | 960ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-20 11:46:29 | 806ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-18 01:30:23 | 763ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-12 20:48:12 | 923ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-07 01:23:31 | 1930ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-04 04:36:43 | 2308ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-07-03 01:26:14 | 2589ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-06-26 21:39:00 | 3471ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-06-24 13:24:48 | 3736ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-06-24 02:46:41 | 1018ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-23 04:29:25 | 1204ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 10:14:24 | 1014ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-06-21 08:38:25 | 1129ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 00:40:50 | 877ms | 2 NS 2 A 1 MX | 🔒 Secure | View |
| 2026-06-16 12:48:16 | 739ms | 2 NS 2 A 0 MX | 🔒 Secure | View |