tsb.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 October 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.19.251.20 is hosted by Sentia Denmark A/S (AS47292) in Denmark. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.19.251.20 | 43200s | — | AS47292 | Sentia Denmark A/S | 81.19.248.0/22 | 🇩🇰 Denmark | Rødovre Municipality |
| www | 81.19.251.20 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1998-10-06 |
| Expires | 2026-12-31 (73d) |
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).
| Domain | Registrar |
|---|---|
| csk.dk | Punktum dk A/S (direct) |
| imers.dk | CURANET A/S |
| thy-stål.dk | Punktum dk A/S (direct) |
| thystål.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 10:25:40 | 16939ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-29 18:59:46 | 4350ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-19 12:22:03 | 4418ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-14 02:05:32 shown | 4567ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 10:11:54 | 4608ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-12 01:19:49 | 6738ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-18 00:15:17 | 6429ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-12 07:59:44 | 16554ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-26 01:16:36 | 3218ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-25 07:33:16 | 4608ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-22 17:43:11 | 1174ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 04:52:08 | 4428ms | 2 NS 1 A 0 MX | ⚠️ Bogus |
| 2026-06-17 11:42:08 | 4526ms | 2 NS 1 A 0 MX | 🔒 Secure |