blackstad.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 August 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.6 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.6 | 3600s | webcluster1.webpod12-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod12-cph3.one.com | 104.37.34.246 | mx1.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod12-cph3.one.com | 104.37.34.247 | mx2.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod12-cph3.one.com | 104.37.34.248 | mx3.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod12-cph3.one.com | 104.37.34.249 | mx4.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:34:e1b3:cb50:4b3c | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.6 2a02:2350:5:10a:34:e1b3:cb50:4b3c (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network blackstad.dk: 46.30.213.6 2a02:2350:5:10a:34:e1b3:cb50:4b3c (AS51468) www.blackstad.dk: 46.30.213.6 2a02:2350:5:10a:34:e1b3:cb50:4b3c (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101001 |
| 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 | 2016-08-03 |
| Expires | 2027-08-31 (318d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 03:28:41 shown | 761ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-05 22:45:13 | 814ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 21:57:28 | 588ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-18 20:34:09 | 777ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-19 20:07:45 | 24948ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-16 11:56:17 | 1384ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 12:38:45 | 1640ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 15:00:24 | 1451ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-24 03:43:59 | 916ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-21 23:12:51 | 1188ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 08:50:26 | 1275ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 13:30:34 | 647ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 07:38:05 | 890ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 14:46:12 | 761ms | 2 NS 1 A 4 MX | 🔒 Secure |