spearheader.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 January 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.202 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by spearheader.dk. 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 |
|---|---|---|---|---|---|---|---|
| 91.221.196.202 | 600s | — | AS51468 | One.com A/S | 91.221.196.0/23 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | spearheader.dk | 91.221.196.202 | — | AS51468 One.com A/S |
| www | 91.221.196.202 (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 | 2026081201 |
| 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 | 2007-01-03 |
| Expires | 2027-01-31 (105d) |
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 |
|---|---|---|---|
| 2026-10-13 22:58:29 | 336ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 16:47:28 | 6313ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-14 02:24:42 | 1010ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 01:44:50 | 739ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 22:12:13 shown | 702ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 09:52:21 | 4581ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 03:38:20 | 566ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 05:44:02 | 755ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 00:25:52 | 1882ms | 2 NS 1 A 1 MX | 🔒 Secure |