adblock.dk is a .dk domain served by 2 nameservers (serena.ns.cloudflare.com, tom.ns.cloudflare.com). It was registered on 28 July 2015 (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, publishes a 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (adblock.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.adblock.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:sh0izc5x@ag.dmarcian.com; ruf=mailto:sh0izc5x@fr.dmarcian.com; |
| www | Exists, no address |
| www vs bare domain | Neither resolves adblock.dk: no address www.adblock.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2416825521 |
| Primary NS (MNAME) | serena.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2015-07-28 |
| Expires | 2031-07-31 (1748d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 13:30:26 | 342ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-07 17:52:13 shown | 1660ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 15:22:29 | 503ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-16 19:50:42 | 585ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-12 08:37:33 | 454ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-27 06:04:06 | 416ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-09 12:00:06 | 874ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-03 16:35:22 | 760ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-15 14:43:58 | 656ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-28 15:13:50 | 757ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-28 04:24:57 | 768ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 13:58:38 | 1793ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-16 13:18:25 | 2329ms | 2 NS 0 A 0 MX | 🔒 Secure |