you-undefined.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.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.
| www | NXDOMAIN |
| Wildcard | No |
| 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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2021042700 |
| 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 |
|---|---|---|---|
| 2026-09-17 08:51:04 | 364ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-06 11:29:41 | 359ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-30 13:58:17 shown | 469ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 03:58:34 | 923ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 18:25:32 | 448ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-17 11:48:08 | 428ms | 4 NS 0 A 0 MX | 🔒 Secure |