defcon2.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.139.210 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 not DNSSEC-signed, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.139.210 | 3600s | web10.gigahost.dk | 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 | defcon2.dk → 46.183.139.210 |
| 🔶 Autoconfig | defcon2.dk → 46.183.139.210 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (defcon2.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.defcon2.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | defcon2.dk (all on defcon2.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.defcon2.dk | defcon2.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026091001 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@defcon2.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 17:27:25 | 1296ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 23:57:35 | 1052ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-07 23:53:08 | 682ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 09:14:56 | 2029ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 06:51:20 | 719ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 11:13:12 | 822ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-16 09:43:29 | 850ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-13 13:13:42 shown | 687ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-03 19:21:30 | 937ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 04:19:45 | 873ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 21:21:51 | 9972ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-13 18:12:41 | 2006ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 12:09:34 | 1326ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-02 14:05:00 | 1929ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 19:52:14 | 1183ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-17 06:54:45 | 2305ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-10 06:45:58 | 1722ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 19:03:19 | 1995ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-26 10:18:25 | 4157ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 16:09:20 | 1146ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-24 18:53:07 | 4303ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-21 12:29:20 | 949ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 20:57:57 | 1049ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 01:52:44 | 1849ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 01:30:06 | 859ms | 5 NS 1 A 3 MX | 🔓 Insecure |