sjoeholm.dk is a .dk domain served by 2 nameservers (addilyn.ns.cloudflare.com, walt.ns.cloudflare.com). It was registered on 24 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.spamfilter.io, mail.sjoeholm.dk and 1 more. The zone is not DNSSEC-signed, 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.
| TXT Record |
|---|
| v=spf1 a:mail.sjoeholm.dk include:spf.spamfilter.io ~all |
| Policy | Record (sjoeholm.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a:mail.sjoeholm.dk include:spf.spamfilter.io ~all |
| www | Exists, no address |
| www vs bare domain | Neither resolves sjoeholm.dk: no address www.sjoeholm.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2418424884 |
| Primary NS (MNAME) | addilyn.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 | 1998-02-24 |
| Expires | 2036-03-31 (3444d) |
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 |
|---|---|---|---|
| 2026-10-25 22:58:30 shown | 713ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-03 01:02:36 | 2709ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-01 00:56:00 | 770ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-27 06:05:52 | 9513ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-22 15:25:35 | 2727ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-18 01:17:33 | 693ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-10 02:43:06 | 3588ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-06 19:13:26 | 1814ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-17 20:37:04 | 1616ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-22 16:41:12 | 1651ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-10 05:30:43 | 4616ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-01 20:32:14 | 1002ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 14:26:06 | 4112ms | 2 NS 0 A 3 MX | 🔓 Insecure |