holckenhavnslot.dk is a .dk domain served by 2 nameservers (adel.ns.cloudflare.com, aiden.ns.cloudflare.com). It was registered on 8 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.63.45 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.holckenhavnslot.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.63.45 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.143.177 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.holckenhavnslot.dk | 5.179.90.178 | mail.holckenhavn.dk | AS31027 GlobalConnect A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:8fb1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:3f2d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.63.45,172.67.143.177 ech=AEX+DQBBFAAgACBHXY+hgrI2NVjWYbVWN2aWZbnJxZOyBznyRiOLIZvWTwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:8fb1,2606:4700:3037::6815:3f2d |
| www | 104.21.63.45 172.67.143.177 2606:4700:3032::ac43:8fb1 2606:4700:3037::6815:3f2d (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network holckenhavnslot.dk: 104.21.63.45 172.67.143.177 2606:4700:3032::ac43:8fb1 2606:4700:3037::6815:3f2d (AS13335) www.holckenhavnslot.dk: 104.21.63.45 172.67.143.177 2606:4700:3032::ac43:8fb1 2606:4700:3037::6815:3f2d (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416394898 |
| Primary NS (MNAME) | adel.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 | 2003-10-08 |
| Expires | 2026-10-31 (12d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 03:26:51 shown | 653ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-02 14:39:49 | 2222ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 14:27:05 | 681ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 23:13:02 | 1100ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-15 21:16:35 | 2374ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-04 19:53:05 | 2121ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-17 11:53:34 | 1305ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 10:03:51 | 2002ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-23 09:58:07 | 938ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 00:23:53 | 1051ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:11:25 | 276ms | 0 NS 0 A 0 MX | ❓ Unknown |