doccheck.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.31.143.90 is hosted by united-domains GmbH (AS202108) in Germany. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|
| ns.udag.de | — | — | — |
| ns.udag.net | — | — | — |
| ns.udag.org | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.31.143.90 | — | — | AS202108 | united-domains GmbH | 89.31.142.0/23 | 🇩🇪 Germany | — |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2024083057 |
| Primary NS (MNAME) | ns.udag.de |
| Responsible (RNAME) | hostmaster@united-domains.de |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 14:44:34 | 619ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-26 23:06:44 | 702ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-25 19:16:13 | 9742ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-02 02:41:39 | 1443ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-02 01:20:06 | 780ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:18:04 | 1234ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:08:41 | 8925ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:03:44 | 403ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:00:58 shown | 635ms | 3 NS 1 A 0 MX | 🔓 Insecure |