sigurdsurdej.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 91.221.196.240 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by sigurdsurdej.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 91.221.196.240 | 600s | — | AS51468 | One.com A/S | 91.221.196.0/23 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | sigurdsurdej.dk | 91.221.196.240 | — | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | sigurdsurdej.dk → 91.221.196.240 |
| 🔶 Autoconfig | sigurdsurdej.dk → 91.221.196.240 |
| www CNAME | sigurdsurdej.dk (all on sigurdsurdej.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sigurdsurdej.dk | sigurdsurdej.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092501 |
| 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 |
|---|---|---|---|
| 2026-09-26 12:40:03 shown | 2365ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 14:16:07 | 715ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 14:20:27 | 591ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 11:50:00 | 32582ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 19:18:45 | 634ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 16:57:19 | 4091ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 16:45:25 | 1158ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 14:29:41 | 2213ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 23:41:49 | 1102ms | 2 NS 1 A 1 MX | 🔒 Secure |