dcbsys.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 1 May 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.105.232.45 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 20.105.232.45 | 3600s | — | AS8075 | Microsoft Corporation | 20.64.0.0/10 | 🇳🇱 The Netherlands | Amsterdam |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 14400s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (dcbsys.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.dcbsys.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:retky4cd@ag.eu.dmarcian.com; ruf=mailto:retky4cd@fr.eu.dmarcian.com |
| www CNAME | app-dknb-redirectsite-weu-prod.azurewebsites.net (all on azurewebsites.net) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · 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 | 2026051929 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2014-05-01 |
| Expires | 2027-05-31 (222d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 01:34:43 shown | 553ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 06:16:35 | 1887ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 06:08:26 | 596ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 05:34:49 | 633ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 11:06:10 | 672ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 10:20:44 | 657ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 17:03:17 | 560ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:52:09 | 565ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 07:12:25 | 3889ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 03:31:07 | 1929ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-02 06:32:05 | 2709ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 06:44:58 | 17030ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-23 02:24:43 | 741ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 17:43:25 | 9625ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 18:42:24 | 854ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 18:26:45 | 9772ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 23:32:49 | 1015ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 01:15:39 | 616ms | 4 NS 1 A 0 MX | 🔒 Secure |