casperholst.dk is a .dk domain served by 4 nameservers (ns1.completnet.com, ns2.completnet.dk, ns3.completnet.com and 1 more). It was registered on 25 August 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail-ex1.fridge.dk, mail-ex2.fridge.dk. The zone is DNSSEC-signed and validates, publishes a 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 | 3600s | mail-ex1.fridge.dk | 194.11.26.41 | mail-ex1.fridge.dk | AS216313 Completnet ApS |
| 10 | 3600s | mail-ex2.fridge.dk | 194.11.26.42 | mail-ex2.fridge.dk | AS216313 Completnet ApS |
| TXT Record |
|---|
| v=spf1 mx a:mail.powerlan.dk -all |
| Policy | Record (casperholst.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a:mail.powerlan.dk -all |
| Policy | Record (_dmarc.casperholst.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@smakkegaarden.dk; ruf=mailto:dmarc@smakkegaarden.dk; fo=0; adkim=r; aspf=r; rf=afrf; sp=none |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves casperholst.dk: no address www.casperholst.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~4096 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026071202 |
| Primary NS (MNAME) | ns1.completnet.com |
| Responsible (RNAME) | dns@smakkegaarden.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2005-08-25 |
| Expires | 2028-07-31 (653d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 21:20:25 | 1818ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-10 12:16:15 | 791ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-05 23:18:21 | 3999ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 22:35:31 | 2675ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-25 21:35:41 | 762ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-23 20:23:42 | 2439ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-21 04:24:45 | 814ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-12 19:43:53 | 1833ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-05 18:42:33 | 496ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-01 19:50:05 | 582ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-31 08:12:45 | 1692ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-26 20:51:04 | 523ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-21 03:50:31 | 1235ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-17 20:58:06 | 1937ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-12 06:11:45 | 841ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-09 06:37:45 | 1128ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-02 19:42:27 | 1821ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-28 03:08:04 | 1270ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-22 22:39:27 | 1030ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-17 06:07:44 | 1182ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-14 12:14:35 shown | 3960ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-08 15:22:42 | 3107ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-03 10:41:59 | 2015ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-29 15:20:06 | 1512ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-24 14:18:03 | 3462ms | 4 NS 0 A 2 MX | 🔒 Secure |