biblioteketthy.dk is a .dk domain served by 2 nameservers (ns1.alco.dk, ns2.alco.dk). It was registered on 24 September 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|
| ns1.alco.dk | 46.225.229.1 | ns1.alco.dk | AS24940 Hetzner Online GmbH |
| ns2.alco.dk | 89.167.94.156 | ns2.alco.dk | AS24940 Hetzner Online GmbH |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves biblioteketthy.dk: no address www.biblioteketthy.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025121805 |
| Primary NS (MNAME) | ns1.alco.dk |
| Responsible (RNAME) | hostmaster@alco.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2021-09-24 |
| Expires | 2027-09-23 (338d) |
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 |
|---|---|---|---|
| 2026-08-27 22:43:57 shown | 609ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-25 14:09:39 | 1066ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-22 22:09:52 | 629ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 14:28:44 | 411ms | 2 NS 0 A 0 MX | 🔓 Insecure |