extension.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 17 July 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| nonexistent.punktum.dk | — | — | — |
| www | 195.47.247.18 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-07-17 |
| Expires | 2027-07-31 (287d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 15:41:11 | 495ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 14:13:33 | 480ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 13:38:29 | 533ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 13:11:59 | 619ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-22 02:21:58 | 720ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 22:18:47 | 622ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 21:54:13 | 222ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-26 16:39:04 | 2929ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-25 22:39:53 | 735ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-25 05:56:41 | 714ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-24 05:11:30 | 2441ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-22 15:35:31 | 810ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-21 15:33:25 | 1109ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-20 15:11:23 | 1811ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-19 11:35:13 | 1106ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-18 11:32:31 | 2374ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-15 16:26:34 | 2538ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-13 17:15:46 | 853ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-12 09:23:30 | 670ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-11 05:56:06 shown | 826ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-10 01:10:34 | 1032ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-08 17:02:26 | 852ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-06 00:05:47 | 786ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-04 21:29:49 | 1304ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 18:16:21 | 1358ms | 2 NS 1 A 4 MX | 🔒 Secure |