fsek.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 December 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 more. The zone is not DNSSEC-signed, publishes a 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 | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 ip4:193.104.246.219 ip4:193.104.246.218 include:spf.mailanyone.net include:spf.comendosystems.com include:spf.protection.outlook.com -all |
| Policy | Record (fsek.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:193.104.246.219 ip4:193.104.246.218 include:spf.mailanyone.net include:spf.comendosystems.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.fsek.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100813 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | A/S SCANNET |
| Registered | 2004-12-04 |
| Expires | 2026-12-31 (69d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 11:45:05 | 4257ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-10 08:10:48 | 2298ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-08 20:00:28 shown | 2566ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-09-29 17:32:42 | 613ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-09-25 17:28:28 | 9587ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-09-13 21:21:10 | 9825ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-09-07 05:54:49 | 1174ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-06-24 17:08:08 | 781ms | 2 NS 0 A 4 MX | 🔓 Insecure |
| 2026-06-23 20:08:40 | 1151ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 15:37:46 | 1174ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 09:31:25 | 741ms | 2 NS 0 A 4 MX | 🔓 Insecure |