arpa.dk is a .dk domain served by 3 nameservers (auth01.ns.dk-hostmaster.dk, auth02.ns.dk-hostmaster.dk, auth03.ns.dk-hostmaster.dk). It was registered on 14 December 1995 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (arpa.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.arpa.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves arpa.dk: no address www.arpa.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026082900 |
| Primary NS (MNAME) | auth01.ns.dk-hostmaster.dk |
| Responsible (RNAME) | tech@punktum.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1995-12-14 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 13:51:51 | 1038ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-11 10:48:21 | 950ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-06 01:24:07 | 305ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-05 01:19:20 | 459ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 00:42:18 | 466ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-29 00:35:40 | 412ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-23 23:24:55 | 452ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-20 11:26:39 | 443ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-11 19:25:31 | 445ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-10 09:43:15 | 2307ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 20:48:13 | 368ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-04 01:57:12 | 334ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-30 20:06:21 shown | 437ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-29 12:59:39 | 662ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-24 13:07:43 | 2260ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-23 08:28:30 | 6205ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-19 05:21:49 | 2865ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-16 11:42:47 | 8613ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-11 15:42:00 | 662ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-10 01:20:57 | 588ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-07 01:13:38 | 756ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-01 02:53:05 | 673ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-24 01:28:02 | 8524ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-22 23:25:02 | 1166ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-18 01:09:44 | 670ms | 3 NS 0 A 0 MX | 🔒 Secure |