opgavebasen.dk is a registered .dk domain whose nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 1 July 2026 (WHOIS) and first appeared in the .dk zone on 2 July 2026. 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.
| www CNAME | opgavebasen.dk (all on opgavebasen.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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.
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown (the delegated nameservers don't answer) |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2026-07-01 |
| Expires | 2027-06-30 (256d) |
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 |
|---|---|
| leinstein.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 10:51:14 | 471ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-21 16:49:24 | 894ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-14 15:16:57 | 534ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 13:09:34 | 886ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-07 16:36:01 | 756ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 13:33:04 | 1427ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-29 21:09:55 | 1843ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 14:16:47 | 424ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 13:36:49 | 532ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-23 14:35:19 | 4923ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-22 10:20:29 | 10254ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-21 10:11:52 shown | 4589ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-20 10:08:18 | 3621ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-19 08:08:34 | 1528ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-18 07:26:48 | 1620ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-15 18:47:06 | 10625ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-14 14:53:04 | 2078ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-12 05:29:35 | 2455ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-10 22:20:08 | 4642ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-09 08:08:10 | 1378ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-06 02:05:27 | 1587ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-03 07:56:45 | 9978ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-02 04:54:46 | 9405ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-28 14:41:22 | 10166ms | 3 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-27 13:58:57 | 1628ms | 3 NS 0 A 0 MX | ❓ Unknown |