deadmansswitch.dk DNS records

🖥️ Nameservers2 records 223ms

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 Records1 records 76ms

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 Records1 records 232ms

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 56ms

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 Records1 records 254ms

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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.deadmansswitch.dk	deadmansswitch.dk

🔗 TLSA / DANE

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

🔐 DNSSEC153ms

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

🏷️ SOA84ms

Field	Value
Serial	2403983528
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

223ms

A

76ms

MX

232ms

AAAA

56ms

TXT

254ms

CAA

86ms

HTTPS

90ms

TLSA

2376ms

SOA

84ms

MTA-STS

67ms

DNSSEC

153ms

SRV

189ms

Total

3031ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-20 14:11:35	1395ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-24 08:04:34	2868ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 20:43:42	2410ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 01:48:40	3031ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 01:25:33	389ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 01:21:04	496ms	2 NS 1 A 1 MX	🔓 Insecure	View