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 193.221.124.123 is hosted by CoMaSys ApS (AS51377) in Denmark. Mail is handled by mail.studie-pc.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 193.221.124.123 | 3600s | — | AS51377 | CoMaSys ApS | 193.221.124.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.studie-pc.dk | 193.221.124.123 | — | AS51377 CoMaSys ApS |
| TXT Record |
|---|
| v=spf1 include:_spf.comasys.dk -all |
| Policy | Record (studie-pc.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.comasys.dk -all |
| Policy | Record (_dmarc.studie-pc.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s; aspf=s |
| www CNAME | studie-pc.dk (all on studie-pc.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.studie-pc.dk | A5Ys9E49_EHEriGzY-98naIAlNbj6OEXyPFfHclwoKg |
| 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 | 2026080403 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | support+wp03@comasys.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 10800s |
| 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 shown | 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 | 10386ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 22:45:05 | 983ms | 2 NS 1 A 1 MX | 🔓 Insecure |