optimisering.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 July 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.211.38 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.211.38 | 600s | domain-parking.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 46.30.211.38 (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 | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101601 |
| 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 | 2024-07-01 |
| Expires | 2027-06-30 (251d) |
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 |
|---|---|---|---|
| 2026-10-16 08:46:18 shown | 905ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 21:04:16 | 383ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 19:05:46 | 408ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 20:15:25 | 1015ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 20:06:49 | 4396ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 17:02:13 | 628ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 01:28:31 | 561ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 13:43:48 | 633ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 05:41:25 | 778ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-30 07:52:17 | 658ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-29 09:44:07 | 745ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 20:50:49 | 655ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 19:54:32 | 813ms | 2 NS 1 A 4 MX | 🔒 Secure |