dahldyhr.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 6 August 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | 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 |
| TXT Record |
|---|
| t-verify=57cad278b0f5378f93522cdf0d267ba3 |
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (dahldyhr.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.dahldyhr.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 20190723 |
| max_age | 86400s |
| Policy MX | — |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.tutanota.de | RSA · ~2048 bit |
| s2 | s2.domainkey.tutanota.de | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025080610 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-08-06 |
| Expires | 2035-08-05 (3214d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 19:12:05 | 713ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 11:05:06 | 946ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 04:56:33 | 545ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 07:24:35 | 769ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 07:04:34 | 940ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 10:12:26 | 1473ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 09:01:12 | 897ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 06:40:05 | 1266ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 01:01:56 | 971ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-19 13:34:11 | 2521ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-16 23:49:49 | 723ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-16 23:41:24 shown | 726ms | 3 NS 0 A 1 MX | 🔒 Secure |