protonmail.dk DNS records

🖥️ Nameservers2 records 106ms

Nameserver	IP addresses	PTR	ASN / ISP
armfazh.ns.cloudflare.com	108.162.195.104 162.159.44.104 172.64.35.104 2606:4700:58::a29f:2c68 2803:f800:50::6ca2:c368 2a06:98c1:50::ac40:2368	armfazh.ns.cloudflare.com armfazh.ns.cloudflare.com armfazh.ns.cloudflare.com armfazh.ns.cloudflare.com armfazh.ns.cloudflare.com armfazh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tess.ns.cloudflare.com	108.162.192.227 172.64.32.227 173.245.58.227 2606:4700:50::adf5:3ae3 2803:f800:50::6ca2:c0e3 2a06:98c1:50::ac40:20e3	tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.87.121	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.143.74	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 98ms

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)2 records 121ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::ac43:8f4a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:5779	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 204ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.87.121,172.67.143.74 ech=AEX+DQBBsgAgACDkJ63NT3zytayXg6+bpk6/sO0S/t6jmtVsH1By+GMdUgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:8f4a,2606:4700:3037::6815:5779

📝 TXT Records2 records 361ms

TXT Record
protonmail-verification=4d4f50e34498a9e33b3582b0dd25145cd8ace960
v=spf1 include:_spf.protonmail.ch mx ~all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.protonmail.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:postmaster@protonmail.dk

📬 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

🔗 TLSA / DANE4 records 570ms

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…

🔐 DNSSEC248ms

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

🏷️ SOA0ms

Field	Value
Serial	2413510468
Primary NS (MNAME)	armfazh.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

106ms

A

88ms

MX

98ms

AAAA

121ms

TXT

361ms

CAA

72ms

HTTPS

204ms

TLSA

570ms

SOA

0ms

MTA-STS

167ms

DNSSEC

248ms

SRV

149ms

Total

2455ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 20:29:19	2455ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-08-17 19:36:35	1758ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-08-16 08:49:47	1558ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-08-07 00:14:14	1430ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-22 00:55:42	2351ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-16 05:45:58	1788ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-25 16:45:51	876ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-23 13:31:56	1181ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 03:07:36	2406ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-18 15:06:30	1290ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-18 06:20:59	1214ms	2 NS 2 A 2 MX	🔒 Secure	View