cbs-open.dk is a .dk domain served by 2 nameservers (ns1.cbs.dk, ns2.cbs.dk). It was registered on 13 July 2005 (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.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (cbs-open.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves cbs-open.dk: no address www.cbs-open.dk: no address |
| 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 |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2017113114 |
| Primary NS (MNAME) | ns1.cbs.dk |
| Responsible (RNAME) | DNS@cbs.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2005-07-13 |
| Expires | 2027-07-31 (287d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 02:04:33 | 288ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-10 21:48:40 | 294ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-06 12:46:12 | 1116ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-02 10:37:28 | 458ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-28 10:06:28 shown | 411ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-26 09:52:18 | 394ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-23 21:53:46 | 421ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-19 13:26:44 | 429ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-14 00:45:20 | 2703ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-06 22:38:48 | 2257ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 07:36:06 | 531ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 06:48:57 | 633ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-26 06:28:34 | 453ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-22 13:35:11 | 2852ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-18 10:46:05 | 567ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-13 13:50:42 | 471ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-09 01:26:27 | 563ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-05 21:18:59 | 454ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-27 01:08:01 | 8394ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-22 22:58:06 | 546ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-17 18:11:07 | 2686ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-13 01:28:11 | 2361ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-09 05:37:36 | 470ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-04 15:21:36 | 2509ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 12:07:08 | 455ms | 2 NS 0 A 0 MX | 🔒 Secure |