zensystems.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 30 June 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 150.171.109.198 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by zensystems-dk.p-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 150.171.109.198 | 10s | — | AS8075 | Microsoft Corporation | 150.171.64.0/18 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.98.16.35 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2603:1061:14:c4::1 | 10s | — | AS8075 | Microsoft Corporation | 2603:1060:0:0:0:0:0:0/31 | 🇺🇸 United States | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | exchange.zensystems.dk |
| TXT Record |
|---|
| *._report._dmarc.zensystems.dk |
| b12fc6eba0364dda82a97ecf2c97fcab |
| have-i-been-pwned-verification=dweb_z1m552on6le0hnrsfk3zz7xf |
| qelg9ah2a7bo6tl6uslaa1oqpl |
| sVjj0ZnRJh8G+6YsJq9Y/4D6FEmiLF+AioG10300Ghc= |
| v=spf1 ip4:212.98.75.14 a:c.spf.service-now.com include:spf.protection.outlook.com -all |
| xpOZvwnnOos0gCb50KYCU3BTn1z7wzb8+Q4TRVuozbeVghETAcgsQepM6PZRSCxaHmak1qbp50tCQJ2iy6OSpw== |
| Policy | Record (zensystems.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:212.98.75.14 a:c.spf.service-now.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.zensystems.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; aspf=s; adkim=s; |
| www CNAME | url-redirect-byg6c4heh5ggfvcy.a03.azurefd.net (all on azurefd.net) |
| www vs bare domain | Same network zensystems.dk: 150.171.109.198 2603:1061:14:c5::1 (AS8075) www.zensystems.dk: 150.171.109.193 2603:1061:14:c0::1 (AS8075) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 803F7447CC75B208DBCA042346F5D8DF… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | A6C267923B26A4A9617EDA73D8DB4FBC… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | C495D9E40F7E625BE22F83CC64305182… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 38D895F5105BC2545822C17A2444F4B0… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 5F88694615E4C61686E106B84C3338C6… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 6EBFF927297A5B3AAF5EAE672252C36A… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | C1AD7778796D20BCA65C889A26550211… |
| SMTP _25._tcp.zensystems-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 133086C7B822371A4A3304F1661A7880… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026031724 |
| 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 | 2000-06-30 |
| Expires | 2027-06-30 (254d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 11:43:04 | 716ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-10 11:00:59 | 1385ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 22:31:24 | 790ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 08:37:59 | 742ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 13:15:10 | 1657ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 07:26:25 | 859ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 07:04:01 | 4367ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 06:06:11 | 9712ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 07:23:35 | 2624ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 14:50:05 | 1339ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 00:24:05 | 1307ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-05 17:29:59 | 2049ms | 4 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-29 13:53:37 | 3144ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 04:54:47 | 1546ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 13:23:55 shown | 1338ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 01:57:11 | 10176ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 18:22:07 | 1654ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 02:49:03 | 7017ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 00:23:42 | 3013ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 01:49:12 | 1820ms | 4 NS 1 A 1 MX | 🔒 Secure |