matematikscreening.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 24 September 2026 (WHOIS) and first appeared in the .dk zone on 25 September 2026. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.efif.dk | 195.254.168.23 | ns.efif.dk | AS51073 Aarhus Business College |
| ns2.efif.dk | 195.254.168.12 | ns2.efif.dk | AS51073 Aarhus Business College |
| ns3.efif.dk | 20.23.170.35 | — | AS8075 Microsoft Corporation |
| www | SERVFAIL |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026180602 |
| Primary NS (MNAME) | ns.efif.dk |
| Responsible (RNAME) | dns-zc@efif.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Aarhus Business College |
| Registered | 2026-09-24 |
| Expires | 2027-09-23 (341d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 03:41:45 | 2984ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-14 00:29:14 shown | 501ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-03 12:26:10 | 289ms | 3 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-25 08:58:16 | 8556ms | 3 NS 0 A 0 MX | 🔓 Insecure |