bluetail.dk is a .dk domain served by 5 nameservers (ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and 2 more). It was registered on 14 February 2022 (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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| www | NXDOMAIN |
| www vs bare domain | Neither resolves bluetail.dk: no address www.bluetail.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 | 2022021400 |
| Primary NS (MNAME) | ns1.brandshelter.com |
| Responsible (RNAME) | tech@brandshelter.com |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Key-Systems GmbH |
| Registered | 2022-02-14 |
| Expires | 2027-02-13 (115d) |
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 |
|---|---|---|---|
| 2026-10-09 11:06:04 | 520ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-30 08:46:48 shown | 470ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-19 15:14:31 | 506ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-04 07:42:50 | 9375ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-01 03:06:07 | 900ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-27 14:16:40 | 728ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-19 01:56:22 | 584ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 15:19:10 | 2116ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 15:17:35 | 1014ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 15:06:56 | 328ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 15:00:46 | 422ms | 5 NS 0 A 0 MX | 🔓 Insecure |