mulder.dk is a .dk domain served by 2 nameservers (norm.ns.cloudflare.com, rose.ns.cloudflare.com). It was registered on 19 January 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.94.186 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.94.186 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.139.138 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:5eba | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:8b8a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.94.186,172.67.139.138 ech=AEX+DQBBkAAgACCENmIPcd5FBUyamCPDszvwHpnmjdrSrTJptfxCjQUgFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5eba,2606:4700:3031::ac43:8b8a |
| www | 104.21.94.186 172.67.139.138 2606:4700:3030::6815:5eba 2606:4700:3031::ac43:8b8a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mulder.dk | cP-Kp788nt5qewQOWWt_SaZKj0ir8oLSem7MER2xgAI |
| TXT | _acme-challenge.mulder.dk | rVwmF4m7fpW0w-8zB5dr5hSAlPsvaPSNE0VlRQZwGGI |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413483384 |
| Primary NS (MNAME) | norm.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 | 2001-01-19 |
| Expires | 2027-03-31 (159d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 01:20:51 | 423ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-16 17:01:44 | 1170ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-15 15:47:31 | 433ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-30 22:31:20 | 581ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-30 02:30:44 | 582ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-24 07:32:09 | 2890ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-24 04:00:44 | 591ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-22 04:11:27 | 1235ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-15 02:59:22 | 2299ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-06 16:47:11 | 829ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-30 13:16:58 shown | 2936ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-16 07:17:00 | 760ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-06 15:15:46 | 1379ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-17 11:19:42 | 9391ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-14 10:42:34 | 1162ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-04 14:10:55 | 1081ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-21 05:16:27 | 1951ms | 2 NS 2 A 0 MX | ⚠️ Bogus |
| 2026-06-20 20:17:44 | 2614ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 22:10:04 | 759ms | 2 NS 2 A 0 MX | 🔒 Secure |