rldn.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It first appeared in the .dk zone on 14 August 2026. Its website address 173.249.20.120 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mx.rldn.dk. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 173.249.20.120 | 3600s | vmi1512488.contaboserver.net | AS51167 | Contabo GmbH | 173.249.0.0/18 | 🇫🇷 France | Lauterbourg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.rldn.dk | 173.249.20.120 | vmi1512488.contaboserver.net | AS51167 Contabo GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 173.249.20.120 |
| 🔶 Autoconfig | 173.249.20.120 |
| TXT Record |
|---|
| v=spf1 a mx ip4:173.249.20.120 ~all |
| Policy | Record (rldn.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ip4:173.249.20.120 ~all |
| Policy | Record (_dmarc.rldn.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:admin@rldn.dk |
| www | 173.249.20.120 (AS51167) (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 |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091801 |
| 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 |
|---|---|---|---|
| 2026-09-30 14:53:35 shown | 636ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 19:25:05 | 9418ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 15:26:59 | 1077ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:40:38 | 756ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-20 15:56:28 | 712ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 08:44:52 | 1233ms | 2 NS 1 A 1 MX | 🔒 Secure |