3ø.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 12 June 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is of unknown DNSSEC status, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | 3600s | — | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | xn--3-5ga.dk → 46.183.138.100 |
| 🔶 Autoconfig | xn--3-5ga.dk → 46.183.138.100 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www | 93.191.156.102 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.3ø.dk | xn--3-5ga.dk |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxdomain |
| Field | Value |
|---|---|
| Serial | 2026082001 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@xn--3-5ga.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2021-06-12 |
| Expires | 2028-08-31 (678d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 15:35:42 | 476ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-30 15:20:12 | 766ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-23 11:01:10 | 541ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-17 11:30:51 | 859ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-10 15:33:56 | 841ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-02 03:18:17 | 9578ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 18:52:41 | 731ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-21 03:27:50 shown | 2026ms | 5 NS 1 A 3 MX | ❓ Unknown |
| 2026-08-13 04:30:26 | 1518ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 05:48:02 | 1404ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-30 21:48:11 | 1173ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 20:40:10 | 17299ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-17 08:12:20 | 1007ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-09 05:44:45 | 9474ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 17:50:27 | 1028ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-26 02:00:10 | 949ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-20 14:36:50 | 539ms | 5 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 10:14:41 | 962ms | 5 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-16 12:52:59 | 3616ms | 5 NS 1 A 3 MX | 🔒 Secure |