sejlerskab.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 95.142.104.188 is hosted by Microdata Aps (AS204866) in Denmark. Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 95.142.104.188 | 600s | web19.oemhost.net | AS204866 | Microdata Aps | 95.142.104.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod15-cph3.g1i.one.com | 104.37.35.36 | mx1.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod15-cph3.g1i.one.com | 104.37.35.37 | mx2.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod15-cph3.g1i.one.com | 104.37.35.38 | mx3.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod15-cph3.g1i.one.com | 104.37.35.39 | mx4.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a07:a80:4:8004::188 | 600s | web19.oemhost.net | AS34766 | atom86 BV | 2a07:a80:0:0:0:0:0:0/29 | 🇳🇱 The Netherlands | — |
| TXT Record |
|---|
| google-site-verification=Jpvwf2q7MzkncRxqg89GPf14yzRqPEUBIu63YfoAbvo |
| google-site-verification=vfWoAlczFPFDit329lgqV08NPw2llPhOiELmt49eJyA |
| v=spf1 include:_custspf.one.com include:spf.raymeon.com -all |
| Policy | Record (sejlerskab.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_custspf.one.com include:spf.raymeon.com -all |
| Policy | Record (_dmarc.sejlerskab.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 95.142.104.188 2a07:a80:4:8004::188 (AS34766 AS204866) (address records, no CNAME) |
| www vs bare domain | Same network sejlerskab.dk: 95.142.104.188 2a07:a80:4:8004::188 (AS34766 AS204866) www.sejlerskab.dk: 95.142.104.188 2a07:a80:4:8004::188 (AS34766 AS204866) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | FEA3731F9349938931D39CCE9FCE17B7… |
| SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | FEA3731F9349938931D39CCE9FCE17B7… |
| SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | FEA3731F9349938931D39CCE9FCE17B7… |
| SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | FEA3731F9349938931D39CCE9FCE17B7… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026102301 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2025-11-05 |
| Expires | 2026-11-04 (8d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-26 01:13:42 | 2654ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-25 00:05:09 shown | 739ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-03 00:54:19 | 580ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 14:43:06 | 4768ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-14 12:32:56 | 2395ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-08 21:26:56 | 1094ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-22 05:15:57 | 5460ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-27 15:49:02 | 5098ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-23 13:22:19 | 1253ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-15 06:01:57 | 1314ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 04:33:23 | 1668ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-24 11:36:07 | 1171ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 04:48:17 | 1349ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-18 07:57:46 | 849ms | 2 NS 1 A 4 MX | 🔒 Secure |