post-online.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 3 August 2026 (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 | 185.21.41.11 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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 | Simply.com A/S |
| Registered | 2026-08-03 |
| Expires | 2027-08-02 (284d) |
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 |
|---|---|---|---|
| 2026-10-13 01:30:58 | 420ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 15:49:20 | 433ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 15:27:42 | 777ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 06:34:00 | 531ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 22:53:25 | 3185ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 21:14:08 | 665ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-05 23:10:43 | 794ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 18:33:07 shown | 2697ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-26 18:20:58 | 659ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-25 18:01:52 | 650ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-24 17:18:43 | 616ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-23 15:56:40 | 660ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-22 11:39:08 | 824ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-20 14:29:46 | 707ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-19 13:05:47 | 755ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-18 10:59:44 | 1383ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-17 09:08:56 | 783ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-15 04:36:26 | 672ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-12 23:31:52 | 687ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-11 00:47:37 | 579ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-09 21:43:42 | 9717ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-08 17:14:10 | 898ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-07 00:40:58 | 742ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-05 23:05:48 | 794ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-04 11:04:36 | 1006ms | 1 NS 0 A 0 MX | ❓ Unknown |