list-petersen.dk is a .dk domain served by 2 nameservers (ns.dub.airwire.ie, ns.ie.tuxbox.nu). It was registered on 29 January 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by host-on.email. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.dub.airwire.ie | 2a02:278::1 91.189.64.189 |
ns.dub.airwire.ie — |
AS42227 Airwire Ltd AS42227 Airwire Ltd |
| ns.ie.tuxbox.nu | 195.43.155.155 2001:67c:0:400::155 |
ns.ie.tuxbox.nu — |
AS47490 TuxBox AS47490 TuxBox |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | host-on.email | 185.87.21.79 | host-on.email | AS215341 Host-On Service Provider GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | bugs.hulpsystems.net → 195.43.155.134 |
| 🔶 Autoconfig | bugs.hulpsystems.net → 195.43.155.134 |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (list-petersen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| www CNAME | wikihost01.ata.airwire.ie (all on airwire.ie) → 91.189.70.251 (AS42227) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.list-petersen.dk | bugs.hulpsystems.net |
| 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 | 2025071100 |
| Primary NS (MNAME) | ns.ie.tuxbox.nu |
| Responsible (RNAME) | hostmaster@hulpsystems.dk |
| Refresh | 10800s |
| Retry | 1800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 10800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-01-29 |
| Expires | 2028-03-31 (529d) |
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 |
|---|---|
| marlow.dk | Punktum dk A/S (direct) |
| nopost.dk | Punktum dk A/S (direct) |
| slashdot.dk | Punktum dk A/S (direct) |
| tuxbox.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 18:20:21 | 19067ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-13 13:45:02 | 12401ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-06 04:59:03 | 11807ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-03 04:27:13 | 12881ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-29 22:53:39 shown | 23989ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-25 15:36:47 | 23372ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-27 21:23:15 | 16117ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-23 07:02:44 | 20852ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-05 14:34:54 | 9399ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:55:37 | 8703ms | 2 NS 0 A 1 MX | 🔓 Insecure |