rubberducky.dk is a .dk domain served by 2 nameservers (alan.ns.cloudflare.com, emma.ns.cloudflare.com). It was registered on 7 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | 300s | — | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.133.57 |
| 🔶 Autoconfig | 172.67.133.57 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (rubberducky.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.rubberducky.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:afdd17b33a204568a6c9bd64ce56c126@dmarc-reports.cloudflare.net |
| www | 104.21.5.87 172.67.133.57 2606:4700:3033::6815:557 2606:4700:3037::ac43:8539 (AS13335) (address records, no CNAME) |
| www vs bare domain | Different networks rubberducky.dk: 46.183.138.100 (AS47292) (all like this)www.rubberducky.dk: 104.21.5.87 172.67.133.57 2606:4700:3033::6815:557 2606:4700:3037::ac43:8539 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · 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 | 2416874786 |
| Primary NS (MNAME) | alan.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2023-10-07 |
| Expires | 2035-10-06 (3265d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 16:01:42 | 827ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-22 08:42:02 shown | 1028ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-07 22:14:40 | 3627ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-03 16:41:20 | 1003ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-02 16:37:24 | 522ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-23 15:39:26 | 563ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-12 04:22:15 | 1164ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-09 13:05:49 | 1141ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-28 00:54:26 | 740ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-16 13:16:48 | 2801ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-11 21:08:48 | 3342ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-24 10:02:24 | 911ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-13 04:32:25 | 1210ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-29 23:26:42 | 1022ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-25 18:21:43 | 903ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 03:58:08 | 877ms | 2 NS 1 A 3 MX | 🔒 Secure |