rgkbh.dk is a .dk domain served by 2 nameservers (ns1.alco.dk, ns2.alco.dk). It was registered on 6 December 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.alco.dk | 46.225.229.1 | ns1.alco.dk | AS24940 Hetzner Online GmbH |
| ns2.alco.dk | 89.167.94.156 | ns2.alco.dk | AS24940 Hetzner Online GmbH |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| V=spf1 -all |
| Policy | Record (rgkbh.dk) |
|---|---|
| -all (hard fail) | V=spf1 -all |
| Policy | Record (_dmarc.rgkbh.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:67e29fbb0fa28@dmarc-dk.centerasecurity.com |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves rgkbh.dk: no address www.rgkbh.dk: no address |
| Wildcard | No |
DNS lookups: 0/10 · policy: -all
No problems found| 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 | 2025121809 |
| Primary NS (MNAME) | ns1.alco.dk |
| Responsible (RNAME) | hostmaster@alco.dk |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1996-12-06 |
| Expires | 2026-12-31 (71d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 08:57:45 shown | 9380ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-06 16:45:36 | 2439ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-27 17:59:29 | 629ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 18:56:32 | 2473ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-01 05:08:25 | 639ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-20 01:17:44 | 623ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 06:32:54 | 613ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 16:59:39 | 698ms | 2 NS 0 A 0 MX | 🔓 Insecure |