sidselsiersted.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 September 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| www | 195.47.247.18 (AS51468) (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 | ✗ Not found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100101 |
| 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 | 2008-09-29 |
| Expires | 2027-09-30 (341d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 21:17:58 | 704ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-16 20:10:49 shown | 13229ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-15 17:44:40 | 716ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-01 18:40:37 | 862ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-23 16:53:32 | 582ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-20 02:15:29 | 846ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-08 17:41:48 | 702ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-01 04:18:32 | 653ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-18 17:21:41 | 2332ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-17 12:08:23 | 853ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-28 20:51:06 | 6683ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 21:21:42 | 705ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-21 18:34:22 | 492ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-19 00:13:17 | 887ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 03:57:51 | 737ms | 2 NS 1 A 3 MX | 🔒 Secure |