martinkorsgaard.dk is a .dk domain served by 2 nameservers (norman.ns.cloudflare.com, tessa.ns.cloudflare.com). It was registered on 28 December 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by antispam.thomaskruse.dk. The zone is not DNSSEC-signed, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | antispam.thomaskruse.dk | 213.5.32.133 | navsmtpsrv001.bodata.dk | AS49974 Bo data ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | owa.krusenet.dk → 213.5.32.160 |
| 🔶 Autoconfig | owa.krusenet.dk → 213.5.32.160 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 5 | 5 | 443 | owa.krusenet.dk |
| TXT Record |
|---|
| v=spf1 mx a:owa.krusenet.dk ip4:213.5.32.160 include:_spf2.bodata.dk ~all |
| Policy | Record (martinkorsgaard.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a:owa.krusenet.dk ip4:213.5.32.160 include:_spf2.bodata.dk ~all |
| www CNAME | owa.krusenet.dk (all on krusenet.dk) → 213.5.32.160 (AS49974) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.martinkorsgaard.dk | owa.krusenet.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2410901462 |
| Primary NS (MNAME) | norman.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2007-12-28 |
| Expires | 2026-12-31 (65d) |
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 |
|---|---|---|---|
| 2026-10-04 16:13:27 | 833ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 15:55:33 | 605ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 02:22:43 | 508ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-24 11:48:35 | 2066ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-28 06:39:43 | 1172ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 00:45:51 shown | 644ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-05 15:17:40 | 1709ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-27 08:26:01 | 9892ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-25 18:21:04 | 1987ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-23 14:20:08 | 1106ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 21:31:50 | 883ms | 2 NS 0 A 1 MX | 🔓 Insecure |