radonsikring.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 3 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, 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.
| www | NXDOMAIN |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2024050303 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2024-05-03 |
| Expires | 2027-05-02 (211d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 20:16:07 | 555ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 20:04:30 | 459ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 08:45:20 | 328ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-28 05:31:28 | 379ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-15 04:32:28 shown | 421ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 15:44:04 | 1801ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-17 12:13:39 | 703ms | 3 NS 0 A 0 MX | 🔒 Secure |