jacobfrisch.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). 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.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (jacobfrisch.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www CNAME | jacobfrisch.dk (all on jacobfrisch.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.
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026080701 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 06:57:19 | 475ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-23 15:07:34 | 679ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-03 21:05:54 | 617ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-12 21:05:52 | 3813ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-09 16:42:13 | 1186ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-07 09:39:27 shown | 626ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-22 17:03:55 | 837ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-10 06:35:27 | 984ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 22:27:31 | 1026ms | 2 NS 1 A 4 MX | 🔒 Secure |