chainguard.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). 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 CNAME | custom-domains.chatgpt.site (all on chatgpt.site) |
| 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 | 2026040901 |
| 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 |
|---|---|---|---|
| 2026-09-29 14:49:40 | 1019ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 17:15:20 | 513ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 16:53:30 | 619ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 06:50:23 | 674ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-26 13:28:18 | 506ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-16 10:55:15 | 32453ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-19 17:47:47 shown | 387ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 20:15:35 | 4400ms | 3 NS 0 A 0 MX | 🔒 Secure |