btx-group.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 13 August 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.65.29 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.btx.dk. The zone is DNSSEC-signed but currently fails validation, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.eurodns.com | — | — | — |
| ns2.eurodns.com | — | — | — |
| ns3.eurodns.com | — | — | — |
| ns4.eurodns.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 49.12.65.29 | — | static.29.65.12.49.clients.your-server.de | AS24940 | Hetzner Online GmbH | 49.12.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.btx.dk | 194.239.124.1 | mail.btx.dk | AS3292 TDC Holding A/S |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (btx-group.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| www | 49.12.65.29 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'btx-group.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2021032736 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2005-08-13 |
| Expires | 2027-08-31 (316d) |
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 |
|---|---|---|---|
| 2026-10-18 08:01:00 | 889ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 16:00:05 | 707ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 09:34:08 | 2645ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 09:31:00 | 933ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 17:55:52 | 943ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 17:32:40 | 9864ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 00:51:55 | 1052ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 21:01:04 | 3231ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 16:44:00 | 1374ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 09:13:27 | 16525ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-23 07:18:38 | 5497ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 01:37:44 | 1883ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 20:05:15 | 937ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 17:53:32 | 935ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 12:48:32 | 8733ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 11:19:21 | 3106ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 12:56:38 | 1449ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:50:47 | 3145ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:47:06 shown | 1499ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-16 17:30:19 | 926ms | 4 NS 1 A 1 MX | 🔒 Secure |