derketek.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.81.39.20 is hosted by Dstny BE N.V. (AS8368) in Denmark. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. 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 |
|---|---|---|---|---|---|---|---|
| 185.81.39.20 | 3600s | — | AS8368 | Dstny BE N.V. | 185.81.36.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | mail.dtserver.dk |
| TXT Record |
|---|
| MS=ms30212580 |
| v=spf1 include:mail.zendesk.com include:_spf.consignor.com include:spf-esec.heimdalsecurity.com include:spf.protection.outlook.com -all |
| Policy | Record (derketek.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:mail.zendesk.com include:_spf.consignor.com include:spf-esec.heimdalsecurity.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.derketek.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:nuyhuyxd@ag.dmarcian-eu.com; |
| www | 185.81.39.20 (AS8368) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025021901 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 23:45:33 shown | 714ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 12:15:11 | 773ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-08 12:42:02 | 611ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-01 23:37:16 | 750ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 02:06:06 | 732ms | 2 NS 1 A 2 MX | 🔒 Secure |