knudmikkelsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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.
| TXT Record |
|---|
| v=spf1 a mx include:_spf.google.com ?all |
| Policy | Record (knudmikkelsen.dk) |
|---|---|
| ?all (neutral) | v=spf1 a mx include:_spf.google.com ?all |
| www CNAME | ole-mikkelsen.dk (all on ole-mikkelsen.dk) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 12:31:43 | 841ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-15 18:18:47 | 965ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-08-24 02:09:44 shown | 5834ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-08-12 09:53:51 | 7467ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-07-17 18:58:16 | 1250ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-07-14 17:30:18 | 1339ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-07-03 01:28:29 | 786ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-06-22 14:08:33 | 867ms | 2 NS 0 A 7 MX | ⚠️ Bogus |
| 2026-06-18 07:44:17 | 1003ms | 2 NS 0 A 7 MX | 🔒 Secure |