tuks.dk is a .dk domain served by 2 nameservers (marvin.ns.cloudflare.com, mckenzie.ns.cloudflare.com). It was registered on 20 December 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.52.25.164 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by amir.mx.cloudflare.net, isaac.mx.cloudflare.net and 1 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 86.52.25.164 | 300s | 86-52-25-164.norlyscustomer.net | AS39642 | Sinal A/S | 86.52.0.0/16 | 🇩🇰 Denmark | Randers |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 86.52.25.164 |
| 🔶 Autoconfig | 86.52.25.164 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| ::ffff:86.52.25.164 | 300s | — | AS39642 | Sinal A/S | — | 🇩🇰 Denmark | Randers |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (tuks.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.tuks.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:per.a.jensen@opacia.dk |
| www | 86.52.25.164 ::ffff:86.52.25.164 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network tuks.dk: 86.52.25.164 ::ffff:86.52.25.164 (AS39642) www.tuks.dk: 86.52.25.164 ::ffff:86.52.25.164 (AS39642) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2411244391 |
| Primary NS (MNAME) | marvin.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2006-12-20 |
| Expires | 2026-12-31 (68d) |
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).
| Domain | Registrar |
|---|---|
| opacia.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 16:15:53 | 918ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-02 09:59:30 | 1184ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 09:50:08 | 1476ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-29 09:43:31 | 1547ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-28 08:52:15 | 1607ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-20 04:20:19 | 926ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-05 17:00:38 | 2868ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-13 06:35:23 | 2928ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-04 03:33:42 shown | 1452ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-20 13:23:21 | 1878ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-28 14:26:47 | 1166ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 15:36:34 | 1253ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 10:34:26 | 1194ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:39:53 | 5128ms | 2 NS 1 A 3 MX | 🔒 Secure |