sandtengineering.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. 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 | custom-domains.chatgpt.site (all on chatgpt.site) |
| 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 |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 18:16:19 | 589ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 15:49:04 | 810ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 19:38:56 | 426ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-05 08:47:52 shown | 2648ms | 1 NS 0 A 0 MX | ❓ Unknown |