dk0.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by c-team-dk.mx1.staysecuregroup.com, c-team-dk.mx2.staysecuregroup.net. 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | www.c-team.dk → 89.239.195.133 |
| 🔶 Autoconfig | www.c-team.dk → 89.239.195.133 |
| TXT Record |
|---|
| v=spf1 a mx ip4:87.48.130.105 ip4:87.48.130.101 include:_spf.stejtech.net ~all |
| Policy | Record (dk0.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ip4:87.48.130.105 ip4:87.48.130.101 include:_spf.stejtech.net ~all |
| www CNAME | www.c-team.dk (all on c-team.dk) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.dk0.dk | www.c-team.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026092101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 19:24:39 | 716ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-27 07:55:24 | 2667ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-24 07:21:58 | 1648ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-23 17:24:51 shown | 1009ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-12 12:56:08 | 1029ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-28 01:05:37 | 897ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-20 06:47:49 | 1021ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-17 03:41:13 | 621ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-17 03:40:30 | 866ms | 2 NS 0 A 2 MX | ⚠️ Bogus |