master-your-mind.dk is a .dk domain served by 2 nameservers (dora.ns.cloudflare.com, seth.ns.cloudflare.com). It was registered on 13 November 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.123 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.tutanota.de. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.6.123 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.134.215 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | — | mail.tutanota.de | 185.205.69.211 185.205.69.213 185.205.69.214 |
mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de |
AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.6.123,172.67.134.215 ech=AEX+DQBBXgAgACBYdqEg9t+ceUEOewqh+wmq9pQHyffrmdwg5FCZq2THbwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= |
| TXT Record |
|---|
| google-site-verification=GVZkqK002mQMT19vjbALK9YUOJahJrDjTa6I9kLkBW4 |
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (master-your-mind.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.master-your-mind.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:faeacfcb245341dfac770f195f44a3a8@dmarc-reports.cloudflare.net,mailto:m@nygaardweb.dk |
| www | 104.21.6.123 172.67.134.215 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network master-your-mind.dk: 104.21.6.123 172.67.134.215 (AS13335) www.master-your-mind.dk: 104.21.6.123 172.67.134.215 (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 |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.tutanota.de | DANE-EE · Full cert · SHA-256 | D141F8F3A4AAC2E4D2677AAFCC723D8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2407082874 |
| Primary NS (MNAME) | dora.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 | 2013-11-13 |
| Expires | 2026-11-30 (40d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| neuro-biofeedback.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 23:04:33 | 1438ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-14 14:21:36 | 941ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 19:18:43 | 857ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-20 04:45:38 | 998ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 18:48:48 | 591ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-21 03:22:28 | 6494ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-17 09:06:56 | 17033ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-03 20:16:59 | 8835ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-21 21:42:26 | 9855ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-10 10:17:16 | 8889ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-18 08:02:32 shown | 888ms | 2 NS 2 A 1 MX | 🔒 Secure |