marcelloholding.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). Its website address 162.159.143.30 is hosted by Cloudflare, Inc. (AS13335). 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 162.159.143.30 | 3600s | — | AS13335 | Cloudflare, Inc. | 162.159.128.0/19 | — | — |
| 172.66.3.26 | 3600s | — | AS13335 | Cloudflare, Inc. | 172.66.0.0/22 | — | — |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091900 |
| 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 |
|---|---|---|---|
| 2026-09-27 21:38:40 | 395ms | 3 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-23 20:32:50 shown | 450ms | 3 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-19 11:06:24 | 473ms | 3 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-19 10:37:44 | 607ms | 3 NS 2 A 0 MX | 🔒 Secure |