copenhageno.dk is a .dk domain the registry has taken out of service: it is delegated to the registry's own sentinel nameservers (nonexistent.punktum.dk), so it does not resolve. It was registered on 4 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| nonexistent.punktum.dk | — | — | — |
| www | Address record (no CNAME) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown (the delegated nameservers don't answer) |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | registry sentinel delegation (no resolvable NS); DNSSEC not evaluated |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2024-10-04 |
| Expires | 2026-10-03 (expired) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 11:23:00 shown | 221ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-22 09:37:27 | 292ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-20 22:20:24 | 126ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-19 21:13:10 | 326ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-18 20:19:22 | 317ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-17 19:25:30 | 120ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-16 19:07:18 | 209ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-15 16:22:39 | 332ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-14 12:13:08 | 244ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-13 09:36:02 | 389ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-12 06:36:43 | 216ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-11 05:08:42 | 117ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-10 04:45:30 | 217ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-08 12:29:33 | 290ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-07 12:25:58 | 218ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-06 10:16:02 | 1424ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-28 00:54:38 | 475ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-26 14:02:07 | 482ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-25 13:16:35 | 2359ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-22 16:06:19 | 973ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 22:24:36 | 279ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-16 22:20:56 | 519ms | 2 NS 1 A 0 MX | 🔒 Secure |