166.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 16 May 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by 166-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | www.hanstholmfiskeauktion.dk → 51.144.135.21 |
| TXT Record |
|---|
| MS=ms40467789 |
| v=spf1 include:spf.protection.outlook.com ip4:158.248.147.244 ip4:188.180.98.130 ip4:92.43.176.4 -all |
| Policy | Record (166.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com ip4:158.248.147.244 ip4:188.180.98.130 ip4:92.43.176.4 -all |
| www CNAME | www.hanstholmfiskeauktion.dk (all on hanstholmfiskeauktion.dk) → 51.144.135.21 (AS8075) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.166.dk | www.hanstholmfiskeauktion.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2021111801 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2007-05-16 |
| Expires | 2027-05-31 (226d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 12:19:04 shown | 812ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-26 13:19:11 | 1006ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 18:00:14 | 2588ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 05:29:20 | 1570ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 05:26:14 | 1185ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 13:21:59 | 10224ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-16 13:12:51 | 1676ms | 2 NS 0 A 1 MX | 🔒 Secure |