cff.dk is a .dk domain with no delegation in this scan. It was registered on 2 February 2001 (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 | 212.97.141.159 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-cff-dk._domainkey.cystiskfibrose.onmicrosoft.com | 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 | ONE.COM A/S |
| Registered | 2001-02-02 |
| Expires | 2027-03-31 (164d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 21:37:49 | 1276ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 20:57:58 | 1528ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 19:31:54 | 1461ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:53:13 | 856ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 00:44:16 | 3076ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 00:24:33 shown | 950ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 04:01:10 | 700ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 20:23:12 | 1333ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 20:10:41 | 667ms | 2 NS 1 A 1 MX | 🔒 Secure |