duuz.dk DNS records

🖥️ Nameservers2 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
liz.ns.cloudflare.com	108.162.192.189 172.64.32.189 173.245.58.189 2606:4700:50::adf5:3abd 2803:f800:50::6ca2:c0bd 2a06:98c1:50::ac40:20bd	liz.ns.cloudflare.com liz.ns.cloudflare.com liz.ns.cloudflare.com liz.ns.cloudflare.com liz.ns.cloudflare.com liz.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
renan.ns.cloudflare.com	108.162.195.62 162.159.44.62 172.64.35.62 2606:4700:58::a29f:2c3e 2803:f800:50::6ca2:c33e 2a06:98c1:50::ac40:233e	renan.ns.cloudflare.com renan.ns.cloudflare.com renan.ns.cloudflare.com renan.ns.cloudflare.com renan.ns.cloudflare.com renan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records2 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 237ms

TXT Record
protonmail-verification=07d2c434a2b92b0aff50cc31fe9e64918bde1b42
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF

Policy	Record (duuz.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC

Policy	Record (_dmarc.duuz.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:d05c70c1859e48ada85ef0a953b0120a@dmarc-reports.cloudflare.net;

📬 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
TXT	_acme-challenge.duuz.dk	6toVt6mOsEhRncWmo9xG4010UaxUnKcTLNQjw4thUSE
TXT	_acme-challenge.duuz.dk	klRKySnZ9cmnjGljvDng8z6pb4FER79OijVEc-9Adrs

🔗 TLSA / DANE4 records 60ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC96ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2412312297
Primary NS (MNAME)	liz.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

54ms

A

35ms

MX

64ms

AAAA

44ms

TXT

237ms

CAA

60ms

HTTPS

60ms

TLSA

60ms

SOA

0ms

MTA-STS

82ms

DNSSEC

96ms

SRV

76ms

Total

1414ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 06:27:08	1414ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-08-17 15:28:14	2951ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-07-31 12:22:28	1133ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-07-25 11:56:18	1671ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-07-23 10:44:04	2120ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-06-29 16:45:06	738ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-06-20 01:56:47	1056ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-06-17 05:05:33	721ms	2 NS 0 A 2 MX	🔒 Secure	View