castra.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 September 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.191 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.111.240.191 | 3600s | webcluster2.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 77.111.240.191 |
| 🔶 Autoconfig | 77.111.240.191 |
| TXT Record |
|---|
| google-site-verification=BhgHEL-wBfYudh5wEwPS5YusRqoy24kQgH-DvtQAdVk |
| v=spf1 include:_spf.google.com a:mail61.ipnordic.dk a:mail81.ipnordic.dk ~all |
| Policy | Record (castra.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com a:mail61.ipnordic.dk a:mail81.ipnordic.dk ~all |
| www | 176.9.24.82 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Field | Value |
|---|---|
| Serial | 2026032401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | nordicway ApS |
| Registered | 2018-09-06 |
| Expires | 2027-09-30 (344d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 16:10:39 | 911ms | 4 NS 1 A 5 MX | 🔓 Insecure |
| 2026-10-02 15:54:57 | 609ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-30 22:19:32 | 664ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-30 03:56:19 | 598ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-23 11:20:57 | 774ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-04 15:04:16 | 5746ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-25 10:15:51 shown | 790ms | 2 NS 1 A 5 MX | ⚠️ Bogus |
| 2026-06-25 08:11:17 | 894ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 19:46:20 | 582ms | 2 NS 1 A 5 MX | 🔒 Secure |