stuhrpetersen.dk is a .dk domain served by 4 nameservers (ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and 1 more). It was registered on 4 February 2019 (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 of unknown DNSSEC status, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | 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 |
|---|
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (stuhrpetersen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.stuhrpetersen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s |
| www | Exists, no address |
| www vs bare domain | Neither resolves stuhrpetersen.dk: no address www.stuhrpetersen.dk: no address |
| 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) 2 CDS, 2 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 | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'stuhrpetersen.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 1570439305 |
| Primary NS (MNAME) | ns1.dnsimple.com |
| Responsible (RNAME) | admin@dnsimple.com |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2019-02-04 |
| Expires | 2027-02-28 (127d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 04:35:54 | 5150ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 13:30:34 | 5395ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-28 11:48:21 | 2912ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-24 10:57:54 | 5783ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-30 04:59:40 | 5746ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-28 19:49:07 | 5948ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-27 19:37:24 | 4092ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-26 18:21:32 shown | 5728ms | 4 NS 0 A 1 MX | ❓ Unknown |
| 2026-08-26 15:36:20 | 3770ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-02 10:07:05 | 3016ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-01 05:16:50 | 991ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 22:31:22 | 4260ms | 4 NS 0 A 1 MX | 🔒 Secure |