telefonioptimering.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, 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.
| www CNAME | telefonioptimering.dk (all on telefonioptimering.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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2020072990 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 03:55:26 | 520ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 23:43:58 | 746ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-28 04:19:56 | 8768ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 05:44:13 | 504ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-26 21:02:29 | 475ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 17:44:38 | 460ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 16:09:53 | 943ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 04:52:42 | 513ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-19 23:14:29 | 547ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-17 15:13:05 shown | 543ms | 4 NS 0 A 0 MX | 🔒 Secure |