otto-duborg.dk is a .dk domain served by 2 nameservers (dns1.viakom.de, dns2.viakom.de). It was already in the .dk zone when our tracking began on 16 June 2026. 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.
| Policy | Record (_dmarc.otto-duborg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves otto-duborg.dk: no address www.otto-duborg.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-ottoduborg-dk01b._domainkey.grenzhandel.onmicrosoft.com | RSA · ~1024 bit below 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026061001 |
| Primary NS (MNAME) | dns1.viakom.de |
| Responsible (RNAME) | hostmaster@viakom.de |
| Refresh | 43200s |
| Retry | 600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 22:15:41 | 1855ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 23:32:39 | 1249ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 02:43:04 | 1705ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-27 13:48:04 | 3093ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-12 15:20:57 | 10887ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-01 06:27:21 | 1396ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-25 09:36:34 | 1492ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:45:53 shown | 5803ms | 2 NS 0 A 0 MX | 🔓 Insecure |