relationerfoerst.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 December 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by mx1.pub.mailpod8-cph3.one.com, mx2.pub.mailpod8-cph3.one.com and 1 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 |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | 3600s | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod8-cph3.one.com | 185.164.14.102 | mx1.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod8-cph3.one.com | 185.164.14.103 | mx2.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod8-cph3.one.com | 185.164.14.104 | mx3.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| TXT Record |
|---|
| v=spf1 include:_spf.simplero.com ~all |
| v=spf1 include:sendgrid.net ~all |
| Policy | Record (relationerfoerst.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.simplero.com ~all |
| ~all (soft fail) | v=spf1 include:sendgrid.net ~all |
| www CNAME | relationerfoerst.simplero.com (all on simplero.com) |
| www vs bare domain | Different networks relationerfoerst.dk: 195.47.247.18 (AS51468) (all like this)www.relationerfoerst.dk: 34.228.154.79 35.170.205.142 (AS14618) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u5155.wl156.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u5155.wl156.sendgrid.net | RSA · ~1024 bit below 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: 4/10 · policy: ~all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | BF2BAC81D64CD548F2920A7E0ADF7907… |
| SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | BF2BAC81D64CD548F2920A7E0ADF7907… |
| SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | BF2BAC81D64CD548F2920A7E0ADF7907… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081601 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2018-12-15 |
| Expires | 2026-12-31 (72d) |
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).
| Domain | Registrar |
|---|---|
| emestring.dk | ONE.COM A/S |
| kaerlet.dk | Punktum dk A/S (direct) |
| relationerførst.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 08:10:25 | 445ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-13 05:05:36 | 1342ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 11:04:22 | 543ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-19 23:57:21 | 698ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 22:32:41 | 6552ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-24 22:11:27 | 2114ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-17 01:50:29 shown | 2567ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-17 18:48:16 | 6699ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-26 05:29:17 | 561ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 22:04:17 | 702ms | 2 NS 1 A 3 MX | 🔒 Secure |