dull.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (dull.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.dull.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 185.20.205.46 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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 | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 10:54:09 | 1600ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 18:33:52 | 721ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 17:12:42 | 616ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 13:34:27 | 918ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 00:29:48 | 628ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 05:26:17 shown | 9732ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-17 05:15:11 | 1687ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 05:07:51 | 389ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 05:00:13 | 621ms | 3 NS 1 A 1 MX | 🔒 Secure |