a5n.dk is a .dk domain served by 3 nameservers (a.dn5.dk, b.dn5.dk, c.dn5.dk). It was registered on 12 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.165.56.35 is hosted by a5n (AS207727) in Denmark. Mail is handled by mail.asbjorn.biz. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 194.165.56.35 | 3600s | — | AS207727 | a5n | 194.165.56.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.asbjorn.biz | 194.165.56.46 | mail.asbjorn.biz | AS207727 a5n |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a10:2a80::10:2 | 3600s | — | AS207727 | a5n | 2a10:2a80:0:0:0:0:0:0/48 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 include:spf.a5n.dk -all |
| Policy | Record (a5n.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.a5n.dk -all |
| Policy | Record (_dmarc.a5n.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@a5n.dk; ruf=mailto:dmarc@a5n.dk; fo=1 |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101403 |
| Primary NS (MNAME) | a.dn5.dk |
| Responsible (RNAME) | hostmaster@dn5.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419000s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-01-12 |
| Expires | 2036-01-31 (3392d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 13:53:25 shown | 7747ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 11:00:07 | 8056ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 07:37:46 | 2879ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 05:25:57 | 481ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 21:19:14 | 523ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 12:15:49 | 956ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 12:11:41 | 2154ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 11:59:17 | 2928ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 11:29:52 | 3178ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 10:58:56 | 1949ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 09:16:35 | 948ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 19:04:16 | 9375ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 10:35:26 | 7167ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 12:27:09 | 1250ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 04:49:56 | 4231ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 21:29:46 | 2936ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 20:44:50 | 873ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 08:48:09 | 25621ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 21:28:46 | 818ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 01:33:22 | 1099ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 15:36:33 | 795ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-25 15:11:47 | 1548ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 10:35:08 | 10131ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 18:42:04 | 4761ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 15:11:26 | 1475ms | 3 NS 1 A 1 MX | 🔒 Secure |