performancedoctor.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 13 January 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.54.30.228 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 87.54.30.228 | 14400s | — | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Frederiksberg |
| www CNAME | performancedoctor.dk (all on performancedoctor.dk) → 87.54.30.228 (AS3292) |
| www vs bare domain | Same network |
| 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 | 2023012504 |
| Primary NS (MNAME) | dns1.cscdns.net |
| Responsible (RNAME) | hostmaster@cscdns.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 14400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2012-01-13 |
| Expires | 2027-07-31 (283d) |
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 |
|---|---|---|---|
| 2026-10-08 02:17:27 shown | 451ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-30 21:46:56 | 573ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-03 15:40:24 | 541ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 10:19:53 | 2773ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 23:17:44 | 476ms | 2 NS 1 A 0 MX | 🔓 Insecure |