opticube.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 18 September 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.237.224 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx1.gigahost.dk, mx2.spamfilter.cc and 1 more. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 78.46.237.224 | 360s | static.224.237.46.78.clients.your-server.de | AS24940 | Hetzner Online GmbH | 78.46.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | opticube.dk → 78.46.237.224 |
| 🔶 Autoconfig | opticube.dk → 78.46.237.224 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www CNAME | opticube.dk (all on opticube.dk) → 78.46.237.224 (AS24940) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.opticube.dk | opticube.dk |
| 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 | 2026092401 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@opticube.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2013-09-18 |
| Expires | 2027-09-30 (339d) |
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 |
|---|---|---|---|
| 2026-10-22 20:38:43 | 1393ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 02:58:24 | 1095ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 17:42:39 | 1242ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 14:30:46 | 1230ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-30 14:19:16 shown | 1769ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 08:05:52 | 1119ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-19 00:36:01 | 1653ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-10 03:02:34 | 1141ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-05 08:05:41 | 1615ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 21:45:41 | 2510ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 10:57:19 | 988ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 20:25:37 | 3609ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-13 07:42:33 | 3989ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 02:39:30 | 9385ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-01 04:04:15 | 6237ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 22:53:04 | 2670ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-16 14:20:12 | 3458ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-09 19:38:49 | 3392ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 12:10:24 | 3961ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 17:34:14 | 983ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-24 17:13:16 | 5688ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-23 03:29:52 | 1173ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 12:08:36 | 2578ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 13:17:02 | 693ms | 5 NS 1 A 3 MX | 🔓 Insecure |