studie-pc.dk is a .dk domain served by 2 nameservers (ns1.dns.services, ns2.dns.services). It was registered on 23 December 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.7.163.195 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mail.studie-pc.dk. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.7.163.195 | 3600s | — | AS47292 | Sentia Denmark A/S | 81.7.160.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.studie-pc.dk | 81.7.163.195 | — | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | studie-pc.dk → 81.7.163.195 |
| 🔶 Autoconfig | studie-pc.dk → 81.7.163.195 |
| www CNAME | studie-pc.dk (all on studie-pc.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.studie-pc.dk | studie-pc.dk |
| 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 | 2022072802 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | hostmaster@comasys.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 2419000s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Namehost by CoMaSys ApS |
| Registered | 2007-12-23 |
| Expires | 2026-12-31 (73d) |
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 |
|---|---|---|---|
| 2026-10-16 07:39:57 | 663ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 15:07:51 | 317ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 20:50:06 | 731ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 19:34:59 | 430ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 23:53:32 | 580ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-05 23:11:44 | 856ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 00:51:07 shown | 10386ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 22:45:05 | 983ms | 2 NS 1 A 1 MX | 🔓 Insecure |