securemx.dk is a .dk domain served by 2 nameservers (jason.ns.cloudflare.com, lola.ns.cloudflare.com). It was registered on 29 October 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.220 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by saturn.securemx.dk, mars.securemx.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.52.220 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.204.93 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 159.69.150.176 |
| 🔶 Autoconfig | 159.69.150.176 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:34dc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:cc5d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.52.220,172.67.204.93 ech=AEX+DQBBkQAgACC1LvNM9sCVP6fJcVezQMTvL0LLilsvTlcarXL7lWQaOQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:34dc,2606:4700:3035::ac43:cc5d |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | ad.securemx.dk |
| TXT Record |
|---|
| abuseipdb-verification=VsWSleUM |
| google-site-verification=FcIrZ-IHcpBfeWHBQ_DJOymRfzqELLRV2dsX4UmDRZo |
| v=spf1 a:saturn.securemx.dk -all |
| Policy | Record (securemx.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:saturn.securemx.dk -all |
| Policy | Record (_dmarc.securemx.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 202201221741 |
| max_age | 10368000s |
| Policy MX | saturn.securemx.dk, mars.securemx.dk |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:postmaster@securemx.dk |
| www | 104.21.52.220 172.67.204.93 2606:4700:3034::6815:34dc 2606:4700:3035::ac43:cc5d (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network securemx.dk: 104.21.52.220 172.67.204.93 2606:4700:3034::6815:34dc 2606:4700:3035::ac43:cc5d (AS13335) www.securemx.dk: 104.21.52.220 172.67.204.93 2606:4700:3034::6815:34dc 2606:4700:3035::ac43:cc5d (AS13335) |
| 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 |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.securemx.dk | 7C46oswhXDH3ZG6qXIFczt_MbnbDg0pLQ1PFTtOox3Y |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mars.securemx.dk | DANE-EE · SPKI · SHA-256 | 30A0A86494D2E4F35AB66C302D4ABCDB… |
| SMTP _25._tcp.saturn.securemx.dk | DANE-EE · SPKI · SHA-256 | 30A0A86494D2E4F35AB66C302D4ABCDB… |
| HTTPS _443._tcp.securemx.dk | DANE-EE · SPKI · SHA-256 | 30A0A86494D2E4F35AB66C302D4ABCDB… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413619843 |
| Primary NS (MNAME) | jason.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Domænehajen ApS |
| Registered | 2017-10-29 |
| Expires | 2027-10-31 (378d) |
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 |
|---|---|
| eminovic.dk | Domænehajen ApS |
| nihad.dk | Domænehajen ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 21:21:49 | 662ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-30 21:00:31 | 1041ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-24 06:46:51 | 1217ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-21 16:11:41 | 1582ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-19 06:37:24 | 1406ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-01 19:12:03 shown | 1563ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-31 20:53:16 | 1260ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-28 01:04:05 | 1095ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-27 00:21:53 | 932ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-08 11:47:52 | 10219ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-27 20:47:51 | 1577ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-26 19:25:40 | 10069ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-22 00:56:37 | 2072ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-12 21:23:32 | 25344ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-04 11:25:50 | 5497ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-30 21:46:33 | 2794ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-25 15:59:04 | 1175ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-25 15:44:56 | 1260ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-17 22:14:23 | 1463ms | 2 NS 2 A 2 MX | 🔒 Secure |