recursion.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 May 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.165.226.22 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 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 |
|---|---|---|---|---|---|---|---|
| 80.165.226.22 | 43200s | ns.gjallar.dk | AS3292 | TDC Holding A/S | 80.160.0.0/13 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | aspmx.l.google.com | 173.194.73.27 2a00:1450:4010:c0a::1b 2a00:1450:4010:c0a::1b |
lq-in-f27.1e100.net lm-in-f27.1e100.net lm-in-x1b.1e100.net |
AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC |
| 20 | 43200s | alt1.aspmx.l.google.com | 192.178.158.26 2404:6800:4013:813::1a |
lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net |
AS15169 Google LLC AS15169 Google LLC |
| 20 | 43200s | alt2.aspmx.l.google.com | 173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b |
yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f27.1e100.net |
AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC |
| 30 | 43200s | aspmx2.google.com | — | — | — |
| 30 | 43200s | aspmx3.google.com | — | — | — |
| 30 | 43200s | aspmx4.google.com | — | — | — |
| 30 | 43200s | aspmx5.google.com | — | — | — |
| www | 80.165.226.22 (AS3292) (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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-05-28 |
| Expires | 2027-06-30 (255d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 23:39:11 shown | 452ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-10-03 12:55:55 | 513ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-25 08:09:23 | 801ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-13 04:28:36 | 898ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-27 06:25:04 | 881ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-12 23:15:11 | 1039ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-17 22:25:52 | 1057ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-12 20:18:00 | 1317ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-25 16:28:46 | 837ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-24 09:21:06 | 3504ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-23 00:56:54 | 915ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 09:36:16 | 816ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-18 06:16:52 | 833ms | 2 NS 1 A 7 MX | 🔒 Secure |