blackadder.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 March 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 67.19.137.10 | 21600s | — | AS142200 | — | — | 🇭🇰 Hong Kong | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | blackadder.dk → 67.19.137.10 |
| 🔶 Autoconfig | blackadder.dk → 67.19.137.10 |
| www CNAME | blackadder.dk (all on blackadder.dk) → 67.19.137.10 (AS142200) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.blackadder.dk | blackadder.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026072001 |
| 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 | 2001-03-06 |
| Expires | 2035-03-31 (3085d) |
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 |
|---|---|---|---|
| 2026-09-23 20:55:27 | 9533ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-21 13:50:54 | 836ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 06:25:56 shown | 817ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 15:39:39 | 1471ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 16:33:38 | 1195ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 14:08:12 | 2347ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 13:59:57 | 1180ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:12:40 | 2706ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 14:45:29 | 532ms | 2 NS 1 A 0 MX | 🔒 Secure |