carstenhoy.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.86 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.86 | 3600s | linux208.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 93.191.156.86 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| protonmail-verification=3ca370393cb803637522072537c3ae88cbd0da5f |
| v=DMARC1; p=quarantine |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (carstenhoy.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| www | 93.191.156.86 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 22:33:32 shown | 426ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 13:03:19 | 1944ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 12:16:43 | 834ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-26 17:35:06 | 8964ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-25 17:03:28 | 1426ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-24 16:29:23 | 1737ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-25 20:28:04 | 2382ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-21 21:34:17 | 544ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 20:51:26 | 26668ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 19:35:35 | 2257ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 19:31:14 | 873ms | 4 NS 1 A 5 MX | 🔒 Secure |