ck3.dk is a .dk domain served by 2 nameservers (ns1.jetcom.dk, ns2.jetcom.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ck3-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.jetcom.dk | 193.242.107.7 | ns1.jetcom.dk | AS31027 GlobalConnect A/S |
| ns2.jetcom.dk | 193.242.107.8 | ns2.jetcom.dk | AS31027 GlobalConnect A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms35720226 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (ck3.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves ck3.dk: no address www.ck3.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2024112703 |
| Primary NS (MNAME) | ns1.jetcom.dk |
| Responsible (RNAME) | hostmaster@ck3.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 14400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-02 07:14:12 shown | 3568ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-28 10:28:38 | 17064ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-02 00:04:35 | 1064ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:49:58 | 63528ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:10:21 | 1563ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:10:05 | 712ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:01:43 | 1432ms | 2 NS 0 A 1 MX | 🔓 Insecure |