599.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 6 December 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.simplelogin.co, mx2.simplelogin.co. The zone is DNSSEC-signed and validates, 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.
| TXT Record |
|---|
| sl-verification=wgyarvagixcyqfbowwtprpqlcfavsa |
| v=spf1 include:simplelogin.co ~all |
| Policy | Record (599.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:simplelogin.co ~all |
| Policy | Record (_dmarc.599.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves 599.dk: no address www.599.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 | dkim._domainkey.simplelogin.co | RSA · ~1024 bit below 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: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.simplelogin.co | DANE-TA · SPKI · SHA-256 | 8D02536C887482BC34FF54E41D2BA659… |
| SMTP _25._tcp.mx1.simplelogin.co | DANE-TA · SPKI · SHA-256 | E5545E211347241891C554A03934CDE9… |
| SMTP _25._tcp.mx1.simplelogin.co | DANE-EE · SPKI · SHA-256 | 6B56DC55058100C47BEF4BB8020D2A24… |
| SMTP _25._tcp.mx2.simplelogin.co | DANE-TA · SPKI · SHA-256 | 8D02536C887482BC34FF54E41D2BA659… |
| SMTP _25._tcp.mx2.simplelogin.co | DANE-TA · SPKI · SHA-256 | E5545E211347241891C554A03934CDE9… |
| SMTP _25._tcp.mx2.simplelogin.co | DANE-EE · SPKI · SHA-256 | 6B56DC55058100C47BEF4BB8020D2A24… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2022120607 |
| 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 | 2022-12-06 |
| Expires | 2028-12-05 (780d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 03:36:35 | 767ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-02 20:10:55 | 691ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-26 19:21:03 | 657ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-20 03:06:43 shown | 530ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-16 13:14:37 | 871ms | 3 NS 0 A 2 MX | 🔒 Secure |