reef-one.dk is a .dk domain served by 3 nameservers (ns1.dnsdienst.de, ns2.dnsdienst.de, ns3.dnsdienst.de). It was registered on 27 April 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 |
|---|---|---|---|
| ns1.dnsdienst.de | 194.50.187.134 | — | AS207021 ipcom GmbH |
| ns2.dnsdienst.de | 194.0.182.1 | — | AS1921 ipcom GmbH |
| ns3.dnsdienst.de | 193.227.117.124 | — | AS1921 ipcom GmbH |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves reef-one.dk: no address www.reef-one.dk: no address |
| Wildcard | No |
| 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 | 2018082900 |
| Primary NS (MNAME) | ns1.dnsdienst.de |
| Responsible (RNAME) | reef-one@dk.reef-one.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2011-04-27 |
| Expires | 2027-04-30 (191d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 05:21:25 | 506ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-30 19:23:16 | 911ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-08 12:12:19 | 824ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-27 20:56:44 | 969ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 12:36:41 shown | 879ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-18 06:29:21 | 1118ms | 3 NS 0 A 0 MX | 🔓 Insecure |