uldmule.dk is a .dk domain served by 2 nameservers (burt.ns.cloudflare.com, cloe.ns.cloudflare.com). It was registered on 16 July 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.lurendrejer.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 | mail.lurendrejer.dk | 2a13:e744:48ef::5 91.226.144.235 |
mail.lurendrejer.dk mail.lurendrejer.dk |
AS216275 Netnoerden ApS AS216275 Netnoerden ApS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a13:e744:48ef:102::2 | 300s | — | AS216275 | Netnoerden ApS | 2a13:e740:0:0:0:0:0:0/29 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| google-site-verification=9aVHsZsw26tnEMBpWycvnvI20zc9E7WQjVwfn-qFFdE |
| v=spf1 mx -all |
| Policy | Record (uldmule.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.uldmule.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc-reports@uldmule.dk; ruf=mailto:dmarc-reports@uldmule.dk; fo=1; |
| www | Exists, no address |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.uldmule.dk | _acme-challenge.dethelesejler.dk |
| TXT | _acme-challenge.dethelesejler.dk | eocMxeBkUqjatr9TU8E_vZHtDqjva2dzdDjyThA0YmQ |
| TXT | _acme-challenge.dethelesejler.dk | u_pDix-JxGqdx0vIv4Ivwwm8H2w7G_2pgUODl9zji6k |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2414967204 |
| Primary NS (MNAME) | burt.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 | 2009-07-16 |
| Expires | 2030-07-31 (1382d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 06:07:40 | 470ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-19 10:57:22 shown | 883ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-27 12:09:50 | 6713ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-27 09:05:29 | 4903ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-26 20:49:57 | 778ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-22 16:15:22 | 9364ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-21 16:06:53 | 7312ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-01 21:10:18 | 2312ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-24 06:23:30 | 19620ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-14 20:45:16 | 26389ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-06 03:47:37 | 5589ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-02 13:35:40 | 2065ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-29 04:37:02 | 2985ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 08:08:59 | 5144ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-21 15:09:42 | 1138ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:31:37 | 2714ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-19 22:01:03 | 4498ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-18 06:46:11 | 698ms | 2 NS 0 A 1 MX | 🔒 Secure |