brevduen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 167.235.55.231 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by brevduen-dk.mail.protection.outlook.com, cluster5.eu.messagelabs.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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 167.235.55.231 | — | static.231.55.235.167.clients.your-server.de | AS24940 | Hetzner Online GmbH | 167.235.0.0/16 | 🇩🇪 Germany | Nuremberg |
| TXT Record |
|---|
| MS=ms49002938 |
| v=spf1 ip4:167.235.55.231 include:spf.protection.outlook.com ~all |
| Policy | Record (brevduen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:167.235.55.231 include:spf.protection.outlook.com ~all |
| www | 167.235.55.231 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| 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 | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061301 |
| 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 | 1998-02-16 |
| Expires | 2027-03-31 (162d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 08:00:51 | 1352ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-25 06:53:19 | 975ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-17 10:55:02 | 2306ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 13:46:14 | 3894ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-13 16:37:34 | 10450ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-16 21:04:06 | 2458ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-25 01:56:23 | 1707ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-16 16:51:04 shown | 1038ms | 2 NS 1 A 3 MX | 🔒 Secure |