rt57.dk is a .dk domain served by 4 nameservers (ns1.quickdns.dk, ns2.quickdns.dk, ns3.quickdns.dk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no 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.
| www | NXDOMAIN |
| www vs bare domain | Neither resolves rt57.dk: no address www.rt57.dk: no address |
| Wildcard | No |
| 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 | 2013052300 |
| Primary NS (MNAME) | ns1.quickdns.dk |
| Responsible (RNAME) | hostmaster@quickdns.dk |
| Refresh | 14400s |
| Retry | 7200s |
| Expire | 2415600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 19:50:41 shown | 1600ms | 4 NS 0 A 5 MX | 🔓 Insecure |
| 2026-08-27 19:17:13 | 1719ms | 4 NS 0 A 5 MX | 🔓 Insecure |
| 2026-07-03 04:19:21 | 1960ms | 4 NS 0 A 5 MX | 🔓 Insecure |
| 2026-06-20 04:29:44 | 956ms | 4 NS 0 A 5 MX | 🔓 Insecure |
| 2026-06-17 22:45:19 | 994ms | 4 NS 0 A 5 MX | 🔓 Insecure |