optiflow.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was registered on 9 August 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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.
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:1c1f:6c11::1 | 3600s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Nuremberg |
| www | 138.199.129.237 95.217.168.112 2a01:4f8:c01e:1b81::1 2a01:4f9:c01d:819::1 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network optiflow.dk: 138.199.129.237 95.217.168.112 (AS24940) www.optiflow.dk: 138.199.129.237 95.217.168.112 2a01:4f8:c01e:1b81::1 2a01:4f9:c01d:819::1 (AS24940) |
| Wildcard | Yes: any name under the zone resolves |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026081818 |
| Primary NS (MNAME) | hydrogen.ns.hetzner.com |
| Responsible (RNAME) | dns@hetzner.com |
| Refresh | 86400s |
| Retry | 10800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2019-08-09 |
| Expires | 2027-08-31 (313d) |
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 |
|---|---|---|---|
| 2026-10-20 21:09:56 | 643ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-19 15:28:19 | 2321ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-18 14:47:32 | 801ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-17 14:33:20 | 1007ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-13 07:04:31 | 678ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-12 02:23:20 | 3054ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-11 01:28:36 | 809ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-08 14:39:55 | 1143ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-07 14:29:46 | 2571ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-06 08:00:00 | 2533ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-05 07:16:34 | 1565ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-01 06:53:22 | 828ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-01 01:56:47 | 1520ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 01:36:22 | 1128ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 23:50:22 | 1048ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-13 11:33:06 | 2292ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-06 10:25:36 | 1021ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 15:13:22 | 1126ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-25 07:17:40 | 1664ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-22 03:34:01 | 4632ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-21 03:26:23 | 5185ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-20 00:40:16 | 3676ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-18 22:40:35 shown | 9578ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-15 06:56:05 | 1034ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-12 23:59:36 | 1900ms | 3 NS 1 A 0 MX | 🔓 Insecure |