optin.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 14 October 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 159.69.104.152 is hosted by Hetzner Online GmbH (AS24940) in Germany. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 159.69.104.152 | 3600s | dedivirt1361.your-server.de | AS24940 | Hetzner Online GmbH | 159.69.0.0/16 | 🇩🇪 Germany | Nuremberg |
| www CNAME | optin.dk (all on optin.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2020072990 |
| 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 | Simply.com A/S |
| Registered | 2016-10-14 |
| Expires | 2026-10-31 (13d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 21:24:19 | 714ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-24 19:59:44 | 815ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-09 01:53:45 shown | 557ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 04:02:43 | 706ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-24 23:44:11 | 691ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-18 06:37:29 | 761ms | 4 NS 1 A 0 MX | 🔒 Secure |