dennisnielsen.dk is a .dk domain served by 2 nameservers (margot.ns.cloudflare.com, peter.ns.cloudflare.com). It was registered on 16 September 2026 (WHOIS) and first appeared in the .dk zone on 17 September 2026. Its website address 104.21.36.164 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.36.164 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.196.252 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:24a4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:c4fc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.36.164,172.67.196.252 ech=AEX+DQBBiAAgACDiCwefp2qlCZI1528quffFxIGgo3TJG1z79gXnmyfYGAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:24a4,2606:4700:3035::ac43:c4fc |
| www | 104.21.36.164 172.67.196.252 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network dennisnielsen.dk: 188.114.96.1 188.114.97.1 2606:4700:3031::6815:24a4 2606:4700:3035::ac43:c4fc (AS13335) www.dennisnielsen.dk: 104.21.36.164 172.67.196.252 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) |
| 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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2415279663 |
| Primary NS (MNAME) | margot.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2026-09-16 |
| Expires | 2027-09-15 (333d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 17:16:48 | 454ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-09 13:23:27 shown | 759ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-19 18:05:06 | 1294ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-17 11:15:21 | 1615ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-17 11:10:29 | 708ms | 2 NS 2 A 0 MX | 🔒 Secure |