jacobmathiasen.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. Its website address 91.221.196.247 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.221.196.247 | — | — | AS51468 | One.com A/S | 91.221.196.0/23 | 🇩🇰 Denmark | Copenhagen |
| www | 85.191.91.155 (AS204274) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061101 |
| 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 |
|---|---|---|---|
| 2026-10-12 06:33:46 | 689ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-29 19:37:10 | 620ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-16 22:18:58 | 1232ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-06 01:48:02 | 844ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-27 08:04:57 | 1062ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-12 12:36:00 | 1690ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-18 20:31:15 | 5847ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-13 03:19:53 | 1978ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-17 13:29:15 shown | 2770ms | 2 NS 1 A 7 MX | 🔒 Secure |