marssound.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 April 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.226 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by dkmailer-dk.mail.protection.outlook.com, gratisdanmark-dk.mail.protection.outlook.com and 3 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 |
|---|---|---|---|---|---|---|---|
| 91.221.196.226 | 600s | — | AS51468 | One.com A/S | 91.221.196.0/23 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 40.104.116.24 |
| TXT Record |
|---|
| MS=ms48810874 |
| MS=ms69877620 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (marssound.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 91.221.196.226 (AS51468) (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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✗ Not found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026071401 |
| 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 | 2001-04-12 |
| Expires | 2027-06-30 (254d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 18:47:52 | 1825ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-10 18:57:47 | 1644ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-10 07:55:18 | 6324ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-22 21:28:41 shown | 17176ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-16 14:58:37 | 2406ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-10 21:17:40 | 2120ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-17 22:21:34 | 1921ms | 2 NS 1 A 5 MX | 🔒 Secure |