algoritmen.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 6 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.16 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 212.237.249.16 | 3600s | splash.curanet.dk | AS48854 | team.blue Denmark A/S | 212.237.248.0/23 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 212.237.249.80 |
| 🔶 Autoconfig | 212.237.249.16 |
| TXT Record |
|---|
| v=spf1 include:spf.curanet.dk -all |
| Policy | Record (algoritmen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.curanet.dk -all |
| Policy | Record (_dmarc.algoritmen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 212.237.249.16 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026080301 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2026-02-06 |
| Expires | 2027-02-05 (105d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:43:49 | 406ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 09:07:39 | 393ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 18:22:38 | 757ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 18:14:27 | 514ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 08:53:34 shown | 574ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 15:54:18 | 1213ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 12:19:36 | 494ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-23 21:03:56 | 1179ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 15:55:37 | 1107ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-16 12:47:38 | 457ms | 2 NS 1 A 0 MX | 🔒 Secure |