algoritmer.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 209.38.218.90 is hosted by DigitalOcean, LLC (AS14061) in Germany. Mail is handled by in1-smtp.messagingengine.com, in2-smtp.messagingengine.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 209.38.218.90 | 43200s | — | AS14061 | DigitalOcean, LLC | 209.38.0.0/16 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (algoritmer.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.messagingengine.com ?all |
| www | 209.38.218.90 (AS14061) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032501 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 19:39:00 | 933ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 23:59:18 | 905ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-15 02:04:33 | 5317ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 06:00:04 shown | 894ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 12:52:30 | 1725ms | 2 NS 1 A 2 MX | 🔒 Secure |