apsys.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.143.68.159 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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 |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 78.143.68.159 | — | 78.143.68.159.static.fibianet.dk | AS44869 | FIBIA P/S | 78.143.64.0/18 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| protonmail-verification=2ffb39bed3a85f9e0dd45bd91802990ddbcb966c |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (apsys.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.apsys.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine;rua=mailto:none@apsys.dk;ruf=mailto:none@apsys.dk;fo=1 |
| www | 78.143.68.159 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 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 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061201 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 18:46:15 | 958ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 01:20:01 | 541ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-17 07:14:19 | 2661ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-16 22:19:45 | 1064ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-12 10:51:10 | 1018ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-19 06:56:24 | 5281ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-15 05:22:54 | 921ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-12 20:35:57 | 5045ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 17:24:59 | 1086ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 13:37:36 shown | 848ms | 2 NS 1 A 2 MX | 🔒 Secure |