coretec.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 25 September 2020 (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 | NXDOMAIN |
| Wildcard | No |
| 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 | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2020-09-25 |
| Expires | 2026-09-30 (expired) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 10:56:29 shown | 625ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 10:46:51 | 431ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-10 13:20:24 | 421ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-03 11:51:37 | 430ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-30 07:06:45 | 440ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-22 21:50:51 | 726ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-20 15:29:00 | 1314ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 22:25:55 | 420ms | 2 NS 0 A 0 MX | 🔒 Secure |