cso-course.dk is a .dk domain served by 5 nameservers (ns-1.dcmediahosting.com, ns-2.dcmediahosting.com, ns-3.dcmediahosting.com and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.237.102.141 is hosted by UpCloud Ltd (AS202053) in Germany. Mail is handled by spam.micusto.com. 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 |
|---|---|---|---|---|---|---|---|
| 94.237.102.141 | 3600s | fipa.barani.io | AS202053 | UpCloud Ltd | 94.237.96.0/20 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 42300s | spam.micusto.com | 94.237.28.65 | spam.micusto.com | AS202053 UpCloud Ltd |
| www | Address record (no CNAME) |
| 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 | 2011061712 |
| Primary NS (MNAME) | ns-1.dcmediahosting.com |
| Responsible (RNAME) | hostmaster@dcmediahosting.com |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 06:21:14 | 729ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-13 06:09:32 shown | 2476ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-12 05:54:44 | 1918ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 05:43:38 | 1680ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-17 17:39:35 | 25390ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 07:41:44 | 726ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:43:50 | 1120ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:05:07 | 630ms | 5 NS 1 A 1 MX | 🔓 Insecure |