acosys.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 89.150.134.97 is hosted by Hiper A/S (AS203953) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 89.150.134.97 | 3600s | x59968661.customers.hiper-net.dk | AS203953 | Hiper A/S | 89.150.128.0/18 | 🇩🇰 Denmark | Frederiksberg |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (acosys.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.acosys.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:re+d60ee0qlikd@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | 89.150.134.97 (AS203953) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
|---|---|---|
| — | 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| 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 19:03:47 shown | 597ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-01 09:20:07 | 1690ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-30 09:13:57 | 460ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-02 00:10:21 | 825ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 12:44:44 | 883ms | 4 NS 1 A 5 MX | 🔒 Secure |