opensystems.dk is a .dk domain with no delegation in this scan. It was registered on 1 August 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 CNAME | opensystems.dk (all on opensystems.dk) → 54.37.114.45 (AS16276) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| Check | Result |
|---|---|
| Validation Status | Not applicable: the domain has no delegation, so there is no zone to validate (stored verdict: ❓ Unknown). |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | VK DATA ApS |
| Registered | 2013-08-01 |
| Expires | 2027-08-31 (316d) |
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 |
|---|---|---|---|
| 2026-09-30 01:42:22 | 868ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 22:50:34 | 9544ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 01:33:48 | 1230ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 17:38:35 | 1470ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 12:46:10 | 2952ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 21:43:05 | 2532ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 00:01:29 shown | 1185ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 14:25:26 | 2133ms | 3 NS 1 A 1 MX | 🔓 Insecure |