polarninja.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 December 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mailrelay.nxdomain.dk. The zone is not DNSSEC-signed, publishes a 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mailrelay.nxdomain.dk | 212.178.179.169 | mailrelay.nxdomain.dk | AS44869 FIBIA P/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | orion.nxdomain.dk → 212.178.179.163 |
| 🔶 Autoconfig | orion.nxdomain.dk → 212.178.179.163 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 1 | 443 | orion.nxdomain.dk |
| _imaps._tcp | 0 | 1 | 993 | orion.nxdomain.dk |
| TXT Record |
|---|
| v=spf1 ip4:212.178.179.160/28 -all |
| Policy | Record (polarninja.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:212.178.179.160/28 -all |
| Policy | Record (_dmarc.polarninja.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dkim-postmaster@allcom.dk |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 2023062101 |
| max_age | 604800s |
| Policy MX | mailrelay.nxdomain.dk |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:smtptlsreport@nxdomain.dk |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves polarninja.dk: no address www.polarninja.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | RSA · ~2048 bit |
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: 0/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mailrelay.nxdomain.dk | DANE-EE · SPKI · SHA-256 | 9A7188551AD40031CA7B6F426D5CB93C… |
| SMTP _25._tcp.mailrelay.nxdomain.dk | DANE-EE · SPKI · SHA-256 | 27D4636990473032011C569D5D0A0038… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2013-12-02 |
| Expires | 2026-12-31 (69d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 18:43:51 shown | 849ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-25 17:37:37 | 773ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-20 12:45:24 | 9427ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-05 00:36:04 | 809ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-20 21:43:13 | 24869ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-27 20:13:31 | 751ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:13:50 | 2188ms | 3 NS 0 A 1 MX | 🔓 Insecure |