srosendahl.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 27 January 2024 (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.
| 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 |
|---|
| t-verify=3f73da820fef654ffe8d6f79f7215473 |
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (srosendahl.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.srosendahl.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 20190723 |
| Policy MX | — |
| www | 103.168.172.37 103.168.172.52 (AS151847) (address records, no CNAME) |
| www vs bare domain | Same network srosendahl.dk: 103.168.172.37 103.168.172.52 (AS151847) www.srosendahl.dk: 103.168.172.37 103.168.172.52 (AS151847) |
| Wildcard | Yes: any name under the zone resolves |
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 | 2024112101 |
| 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 | 2024-01-27 |
| Expires | 2027-01-26 (97d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 07:19:59 | 2470ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-05 22:20:03 | 4280ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-02 21:57:06 | 640ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-17 03:05:30 | 885ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-26 14:40:41 shown | 1029ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 02:59:24 | 565ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-21 16:04:29 | 988ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 03:45:02 | 653ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 13:37:05 | 2586ms | 3 NS 0 A 1 MX | 🔒 Secure |