21781202.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 23 June 2007 (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 CNAME | 21781202.dk (all on 21781202.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| 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 | 2007-06-23 |
| Expires | 2027-06-30 (256d) |
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 |
|---|---|---|---|
| 2026-10-02 11:44:18 | 406ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-10-01 07:50:03 | 626ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-27 20:00:53 | 9598ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-23 17:49:49 | 786ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-28 07:13:48 | 999ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-27 01:11:57 | 751ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-24 16:39:18 | 710ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-24 10:28:31 | 8846ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-23 08:53:39 | 1082ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-22 04:57:50 | 1213ms | 3 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-20 17:33:55 | 757ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-19 08:42:40 shown | 691ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-18 06:28:06 | 1763ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-17 03:29:32 | 765ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-15 13:53:35 | 677ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-14 00:46:39 | 810ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-10 19:13:13 | 720ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-09 03:03:25 | 1055ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-06 11:15:29 | 811ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-05 05:28:22 | 479ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-04 05:26:26 | 737ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-03 13:33:06 | 2541ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 22:03:02 | 919ms | 3 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-23 18:03:46 | 863ms | 3 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-16 13:25:31 | 11560ms | 3 NS 1 A 5 MX | 🔓 Insecure |