holt-larsen.dk is a .dk domain served by 2 nameservers (ns1.heimdns.net, ns2.heimdns.net). It was registered on 14 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.sohola.net. 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 |
|---|---|---|---|---|---|
| 1337 | 1337s | mx.sohola.net | 213.142.141.225 2a00:b921:1:1337:10:141:0:225 |
mx.sohola.net mx.sohola.net |
AS47527 DLX A/S AS47527 DLX A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mx.sohola.net → 213.142.141.225 |
| 🔶 Autoconfig | mx.sohola.net → 213.142.141.225 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 1 | 443 | mx.sohola.net |
| TXT Record |
|---|
| v=spf1 include:spf.sohola.net -all |
| Policy | Record (holt-larsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.sohola.net -all |
| Policy | Record (_dmarc.holt-larsen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; rua=mailto:eaa17656@in.mailhardener.com,mailto:dmarc@sohola.net; sp=none; aspf=r |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 1337 |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:eaa17656@in.mailhardener.com |
| www | Exists, no address |
| www vs bare domain | Neither resolves holt-larsen.dk: no address www.holt-larsen.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.sohola.net | DANE-EE · SPKI · SHA-256 | B773093E63819E4DD4910A7D61C2F318… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2007-03-14 |
| Expires | 2027-03-31 (156d) |
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).
| Domain | Registrar |
|---|---|
| ipbot.dk | Punktum dk A/S (direct) |
| mailpass.dk | Punktum dk A/S (direct) |
| pernilleelisabeth.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 12:37:03 | 2101ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-08 12:31:05 | 1995ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-29 23:07:16 | 5563ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-05 21:45:59 | 3856ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-29 19:58:55 | 5775ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-29 09:49:21 | 3946ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-27 12:05:47 | 2129ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 09:37:55 | 1680ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 16:54:12 | 2943ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 03:37:11 | 3325ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-23 17:04:27 shown | 3785ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 22:09:23 | 8440ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 15:10:59 | 2019ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 14:38:31 | 4332ms | 2 NS 0 A 1 MX | ⚠️ Bogus |
| 2026-06-20 22:26:34 | 2652ms | 2 NS 0 A 1 MX | ⚠️ Bogus |
| 2026-06-20 12:03:29 | 1968ms | 2 NS 0 A 1 MX | ⚠️ Bogus |
| 2026-06-20 06:42:34 | 3089ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 12:14:27 | 1279ms | 2 NS 0 A 1 MX | 🔒 Secure |