dan-olsen.dk is a .dk domain served by 2 nameservers (holly.ns.cloudflare.com, rex.ns.cloudflare.com). It was registered on 4 October 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (dan-olsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.dan-olsen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves dan-olsen.dk: no address www.dan-olsen.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.dan-olsen.dk | fS1ADyJOXxWMl69IVO8xipebvsmLpUn4ardrqyLHOA4 |
| TXT | _acme-challenge.dan-olsen.dk | nIzkhe6nrRNGOTmZbP4mvPjFFkqjucZlN1jwC1nfmXU |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2407283796 |
| Primary NS (MNAME) | holly.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2010-10-04 |
| Expires | 2026-10-31 (13d) |
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 |
|---|---|
| tilbudsmaster.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 17:42:29 | 410ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-09 14:40:15 | 446ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-19 01:41:29 | 9552ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-11 10:48:41 | 1219ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-25 22:27:03 | 903ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-25 16:12:40 | 1408ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-21 13:23:42 | 1366ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-19 09:54:47 | 2873ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-18 09:53:36 | 1660ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-21 17:03:07 | 1327ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-13 14:59:19 | 890ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-22 23:21:46 | 805ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 19:26:15 | 750ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 08:27:54 shown | 911ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:56:05 | 448ms | 2 NS 0 A 1 MX | 🔓 Insecure |