rysensteen.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.43.16 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rysensteen-dk.mx1.mailanyone.net, rysensteen-dk.mx2.mx25.net and 4 more. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.43.16 | 3600s | linux16.scannet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 ip4:185.21.43.16 include:_spf.google.com include:mailanyone.net -all |
| xn--google-site-verification=VzYkpGMtJaVRoBZ6Jn3zKUnY99wQcw5JrNnyTBuPv5U. |
| xn--inst=RysensteenGymnasium. |
| xn--MS=ms68159618. |
| xn--MS=ms68159618.xn--. |
| xn--uvmid=101115. |
| Policy | Record (rysensteen.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:185.21.43.16 include:_spf.google.com include:mailanyone.net -all |
| www | 185.21.43.16 (AS48854) (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 |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026031001 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-24 19:39:11 shown | 1061ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-09-03 10:58:44 | 1022ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-08-26 10:35:40 | 2325ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-08-25 10:39:30 | 1006ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-07-02 04:02:00 | 2622ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-06-19 14:22:03 | 1220ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-06-18 01:20:17 | 1272ms | 2 NS 1 A 6 MX | 🔒 Secure |