derekprince.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 172.205.112.13 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. The zone is DNSSEC-signed and validates, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.205.112.13 | — | — | AS8075 | Microsoft Corporation | 172.200.0.0/13 | 🇮🇪 Ireland | Dublin |
| TXT Record |
|---|
| v=spf1 ip4:87.116.14.228 ip4:81.7.137.124 a:webmail.aks.dk include :spf.curanet.dk include:_smtpcluster.jay.net ~all |
| Policy | Record (derekprince.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:87.116.14.228 ip4:81.7.137.124 a:webmail.aks.dk include :spf.curanet.dk include:_smtpcluster.jay.net ~all |
| Policy | Record (_dmarc.derekprince.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 172.205.112.13 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: ~all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026041301 |
| 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 |
|---|---|---|---|
| 2026-10-08 00:32:36 | 474ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 15:20:59 | 1899ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 21:30:56 | 634ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-30 21:55:09 | 1744ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 19:12:29 | 798ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-07 19:25:25 | 4948ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 10:22:23 | 2820ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 09:54:31 | 1003ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 02:05:55 shown | 731ms | 2 NS 1 A 2 MX | 🔒 Secure |