acalbfi.dk is a .dk domain served by 3 nameservers (dns1.acalbfi.com, dns2.acalbfi.com, dns3.acalbfi.com). It was registered on 11 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.144.187.21 is hosted by Mittwald CM Service GmbH & Co. KG (AS15817) in Germany. Mail is handled by eu-smtp-inbound-1.mimecast.com, eu-smtp-inbound-2.mimecast.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 45.144.187.21 | 3600s | — | AS15817 | Mittwald CM Service GmbH & Co. KG | 45.144.184.0/22 | 🇩🇪 Germany | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| domainVerification=14886319-120d-4797-885a-2c4128970ffe |
| domainVerification=46031162-194b-4959-a90c-6c7bf73a6ce9 |
| v=spf1 include:_u.acalbfi.dk._spf.smart.ondmarc.com ~all |
| Policy | Record (acalbfi.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_u.acalbfi.dk._spf.smart.ondmarc.com ~all |
| Policy | Record (_dmarc.acalbfi.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:c0be5c10@inbox.ondmarc.com; ruf=mailto:c0be5c10@inbox.ondmarc.com; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600 |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 1748265894217 |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:c0be5c10@inbox.ondmarc.com |
| www | 45.144.187.21 (AS15817) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 1/10 · 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 | 2026091401 |
| Primary NS (MNAME) | dns1.acalbfi.com |
| Responsible (RNAME) | hostmaster@acalbfi.com |
| Refresh | 3600s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 2011-02-11 |
| Expires | 2027-02-28 (130d) |
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 |
|---|---|
| acal.dk | MarkMonitor Inc. |
| acaltechnology.dk | MarkMonitor Inc. |
| bfioptilas.dk | MarkMonitor Inc. |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 04:33:13 | 1986ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-19 04:30:13 | 8601ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-18 03:26:55 | 6157ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-17 03:05:26 | 7449ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-16 02:49:33 | 10456ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-15 01:40:21 | 6837ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-14 00:47:38 | 4839ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-12 23:18:47 | 7848ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-11 19:58:13 | 1675ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-10 19:14:10 | 1668ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-09 18:55:57 | 2246ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-08 12:22:21 | 1660ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-07 12:10:11 | 4741ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-06 11:56:48 | 7433ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-05 10:26:07 | 4856ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-04 10:22:19 | 2087ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-03 10:21:29 | 1966ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-02 10:20:12 | 2612ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-01 10:16:34 | 3368ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 10:08:44 | 2573ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-29 19:25:31 | 2091ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-28 19:17:35 | 1532ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-27 19:10:29 | 11941ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-27 16:20:53 | 2373ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-26 16:00:38 | 1885ms | 3 NS 1 A 2 MX | 🔓 Insecure |