xfn.dk is a .dk domain served by 3 nameservers (a.dn5.dk, b.dn5.dk, c.dn5.dk). It was registered on 8 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.165.56.47 is hosted by a5n (AS207727) in Denmark. Mail is handled by mail.asbjorn.biz. The zone is not DNSSEC-signed, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 194.165.56.47 | 360s | — | AS207727 | a5n | 194.165.56.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 360s | mail.asbjorn.biz | 194.165.56.46 | mail.asbjorn.biz | AS207727 a5n |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _xmpp-client._tcp | 10 | 0 | 5222 | jabber.asbjorn.biz |
| _xmpp-server._tcp | 10 | 0 | 5269 | jabber.asbjorn.biz |
| TXT Record |
|---|
| v=spf1 include:spf.a5n.dk -all |
| Policy | Record (xfn.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.a5n.dk -all |
| www CNAME | xfn.dk (all on xfn.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026100900 |
| Primary NS (MNAME) | a.dn5.dk |
| Responsible (RNAME) | hostmaster@dn5.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 2419000s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2008-05-08 |
| Expires | 2027-05-31 (226d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 03:13:32 | 733ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 01:31:15 | 426ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-10 23:42:03 | 1426ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-09 22:35:36 shown | 5157ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 19:31:36 | 871ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-06 21:47:27 | 397ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 21:25:48 | 440ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 21:22:55 | 725ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 21:05:49 | 1134ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 20:05:40 | 683ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 19:36:50 | 1399ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 02:27:57 | 1556ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 13:21:37 | 7107ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 04:26:45 | 953ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 14:11:20 | 662ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 07:26:58 | 503ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 23:02:28 | 750ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-22 03:37:55 | 923ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 02:56:31 | 5031ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-16 05:49:55 | 3105ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-14 10:45:18 | 1565ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 17:55:14 | 932ms | 3 NS 1 A 1 MX | ❓ Unknown |
| 2026-08-08 03:52:38 | 821ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-27 20:12:10 | 817ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-26 19:52:41 | 1801ms | 3 NS 1 A 1 MX | 🔓 Insecure |