top-kurser.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.19.232.102 is hosted by Sentia Denmark A/S (AS47292) in Denmark. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 81.19.232.102 | 21600s | — | AS47292 | Sentia Denmark A/S | 81.19.224.0/20 | 🇩🇰 Denmark | Albertslund |
| www | 81.19.232.102 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2021111801 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 21:33:41 shown | 312ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-01 02:18:48 | 334ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-30 09:00:33 | 371ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-27 23:47:23 | 638ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-18 02:56:04 | 599ms | 2 NS 1 A 0 MX | 🔒 Secure |