costra.dk is a .dk domain with no delegation in this scan. It was registered on 9 June 2025 (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.
| www | 185.20.205.21 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | Not applicable: the domain has no delegation, so there is no zone to validate (stored verdict: ⚠️ Bogus). |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-06-09 |
| Expires | 2027-06-08 (232d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 19:10:23 | 621ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 19:06:07 | 734ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 21:09:46 | 642ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 06:59:47 | 4552ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-22 10:54:29 | 9823ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-21 06:05:28 shown | 1384ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-21 04:52:37 | 2797ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-20 08:05:25 | 2655ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-20 06:15:19 | 4244ms | 0 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-16 22:36:28 | 757ms | 0 NS 0 A 0 MX | ⚠️ Bogus |