deadmansswitch.dk

📜 Historical scan 2026-09-21 17:08:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

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.

🖥️ Nameservers#

2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jule.ns.cloudflare.com	108.162.192.175 172.64.32.175 173.245.58.175 2606:4700:50::adf5:3aaf 2803:f800:50::6ca2:c0af 2a06:98c1:50::ac40:20af	jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 35ms

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

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.prg.dk	109.199.107.183	mail.prg.dk	AS51167 Contabo GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	deadmansswitch.dk → 109.199.107.183
🔶 Autoconfig	deadmansswitch.dk → 109.199.107.183

🔷 AAAA Records (IPv6)#

1 records 38ms

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

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 163ms

TXT Record
v=spf1 ip4:109.199.107.183 ip6:2a02:c207:2323:626::1 include:deadmansswitch.dk -all

✉️ SPF#

Policy	Record (deadmansswitch.dk)
-all (hard fail)	v=spf1 ip4:109.199.107.183 ip6:2a02:c207:2323:626::1 include:deadmansswitch.dk -all

📨 DMARC#

Policy	Record (_dmarc.deadmansswitch.dk)
p=reject	v=DMARC1; p=reject

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 03:29:55

www CNAME	deadmansswitch.dk (all on deadmansswitch.dk) → 109.199.107.183 2a02:c207:2323:626::1 (AS51167)
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

error include:deadmansswitch.dk includes itself (directly or via another include): receivers return permerror

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.deadmansswitch.dk	0kCwbmm4fkkTLKR3Jl8ljR28lNxWwhdjjYCKIIMI_SY
TXT	_acme-challenge.deadmansswitch.dk	mnVLgd3M_W3cbFcxDR9SuVhsPVkUgkMmKMBwBCC35lE

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

109ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415425891
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 09:12:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-03-01
Expires	2033-03-31 (2357d)

📋 WHOIS#

⏱️ Lookup Timing#

27ms

35ms

38ms

AAAA

38ms

TXT

163ms

CAA

33ms

HTTPS

37ms

TLSA

781ms

SOA

0ms

MTA-STS

50ms

DNSSEC

109ms

SRV

63ms

Total

1482ms

🕐 Scan History#

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	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 shown	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