deadmansswitch.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, jule.ns.cloudflare.com). It was registered on 1 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.199.107.183 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mail.prg.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 109.199.107.183 | 86400s | mail.prg.dk | AS51167 | Contabo GmbH | 109.199.96.0/19 | 🇫🇷 France | Lauterbourg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mail.prg.dk | 109.199.107.183 | mail.prg.dk | AS51167 Contabo GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | deadmansswitch.dk → 109.199.107.183 |
| 🔶 Autoconfig | deadmansswitch.dk → 109.199.107.183 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:c207:2323:626::1 | 86400s | mail.prg.dk | AS51167 | Contabo GmbH | 2a02:c204:0:0:0:0:0:0/30 | 🇫🇷 France | Lauterbourg |
| TXT Record |
|---|
| v=spf1 ip4:109.199.107.183 ip6:2a02:c207:2323:626::1 include:deadmansswitch.dk -all |
| Policy | Record (deadmansswitch.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:109.199.107.183 ip6:2a02:c207:2323:626::1 include:deadmansswitch.dk -all |
| Policy | Record (_dmarc.deadmansswitch.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | deadmansswitch.dk (all on deadmansswitch.dk) |
| www vs bare domain | Same network deadmansswitch.dk: 109.199.107.183 2a02:c207:2323:626::1 (AS51167) www.deadmansswitch.dk: 109.199.107.183 2a02:c207:2323:626::1 (AS51167) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.deadmansswitch.dk | deadmansswitch.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 | 2415551388 |
| Primary NS (MNAME) | duke.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2021-03-01 |
| Expires | 2033-03-31 (2357d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 18:05:00 | 479ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 05:03:23 shown | 701ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-22 14:00:47 | 633ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 17:08:39 | 1482ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 20:46:12 | 1034ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 14:11:35 | 1395ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-24 08:04:34 | 2868ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 20:43:42 | 2410ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 01:48:40 | 3031ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 01:25:33 | 389ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 01:21:04 | 496ms | 2 NS 1 A 1 MX | 🔓 Insecure |