birn-online.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 2 February 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.gigahost.dk | — | — | — |
| ns2.gigahost.dk | — | — | — |
| ns3.gigahost.dk | — | — | — |
| ns4.gigahost.dk | — | — | — |
| ns5.gigahost.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | — | — | AS47292 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | — | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | — | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (birn-online.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.birn-online.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | birn-online.dk (all on birn-online.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
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 | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026061203 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@birn-online.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | GIGAHOST ApS |
| Registered | 2007-02-02 |
| Expires | 2028-02-29 (493d) |
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).
| Domain | Registrar |
|---|---|
| forenings-assistent.dk | GIGAHOST ApS |
| mak-online.dk | GIGAHOST ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 05:28:30 | 680ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 18:46:51 | 823ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-09 00:44:43 | 868ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 23:37:48 | 1117ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 21:54:11 | 848ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-19 04:54:26 | 964ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-12 17:28:42 | 785ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-05 16:37:42 | 1048ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-28 02:25:17 | 813ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 13:55:40 | 1975ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-13 10:27:49 | 4783ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-06 05:53:49 | 1761ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-31 00:33:46 | 1280ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 02:07:00 | 9906ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-16 02:17:15 | 1272ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-10 15:57:50 | 1300ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 16:12:57 | 905ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-26 13:54:23 | 1029ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-19 15:41:17 | 1250ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 14:41:55 shown | 635ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 14:40:32 | 559ms | 5 NS 1 A 3 MX | 🔓 Insecure |