duuo.dk is a .dk domain with no delegation in this scan. It was registered on 3 July 2017 (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 | cdn.webflow.com (all on webflow.com) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-duuo-dk._domainkey.duuo.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-duuo-dk._domainkey.duuo.onmicrosoft.com | RSA · ~1024 bit below 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 | Punktum dk A/S (direct) |
| Registered | 2017-07-03 |
| Expires | 2027-07-31 (284d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 17:32:02 | 2547ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 16:54:37 | 3614ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 14:14:33 | 3068ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 11:09:22 | 2354ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 07:07:40 | 992ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 06:47:35 | 1584ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-21 21:37:40 | 6328ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-11 04:25:57 | 4167ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 22:09:20 | 17103ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-16 19:16:15 | 41535ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-11 23:38:21 | 10439ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 11:12:51 | 9311ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-29 07:18:11 | 1537ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 19:06:04 | 1872ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 22:11:55 shown | 1154ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 05:05:44 | 664ms | 2 NS 1 A 1 MX | 🔓 Insecure |