s3n.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
marty.ns.cloudflare.com	108.162.193.204 172.64.33.204 173.245.59.204 2606:4700:58::adf5:3bcc 2803:f800:50::6ca2:c1cc 2a06:98c1:50::ac40:21cc	marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
vera.ns.cloudflare.com	108.162.192.147 172.64.32.147 173.245.58.147 2606:4700:50::adf5:3a93 2803:f800:50::6ca2:c093 2a06:98c1:50::ac40:2093	vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.71.193	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.148.40	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
65535	300s	mail.tutanota.de	185.205.69.211 185.205.69.213 185.205.69.214	mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de	AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH

🔷 AAAA Records (IPv6)2 records 24ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:47c1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:9428	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.71.193,172.67.148.40 ech=AEX+DQBBKgAgACCagOE0lmOvNWN5uy3ezyGns3addflhunnKLGpZ9c/7MwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:47c1,2606:4700:3035::ac43:9428

📝 TXT Records4 records 137ms

TXT Record
google-site-verification=3Iv_E7ttWj4v-y-fJ9pzWRRSKmNqxS53m4rwSdyrByQ
keybase-site-verification=78uuufcmS9Lnfm0-0zUXXldSrvmKFGNHVF5WGFOhRis
t-verify=9d632af90651f576a19bcf834a94f977
v=spf1 include:spf.tutanota.de -all

✉️ SPF

Policy	Record (s3n.dk)
-all (hard fail)	v=spf1 include:spf.tutanota.de -all

📨 DMARC

Policy	Record (_dmarc.s3n.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s; rua=mailto:0d9d2892e57c41d69b10c87090246dba@dmarc-reports.cloudflare.net;

📬 MTA-STS258ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20190723
max_age	86400s
Policy MX	mail.tutanota.de

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE1 records 108ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.tutanota.de	DANE-EE · Full cert · SHA-256	D141F8F3A4AAC2E4D2677AAFCC723D8E…

🔐 DNSSEC105ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413310667
Primary NS (MNAME)	marty.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

31ms

A

39ms

MX

31ms

AAAA

24ms

TXT

137ms

CAA

31ms

HTTPS

37ms

TLSA

108ms

SOA

0ms

MTA-STS

258ms

DNSSEC

105ms

SRV

57ms

Total

870ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:10:40	870ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-07 20:11:43	2067ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-02 16:44:47	1370ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-20 10:01:10	1841ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-11 13:57:12	1069ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-27 08:27:53	1066ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-27 00:42:17	2084ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-19 22:51:20	11615ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-18 07:52:53	1766ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-18 07:52:26	1801ms	2 NS 2 A 1 MX	🔒 Secure	View