DOMAINS CHANGES SERVICES CERTS API

protonmail.ch

Observed 2026-06-13T08:55:44.826Z (4h ago). Every field below was attested with an Ed25519 signature at scan time.

Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.

Verify this receipt

Ed25519 Receipt

Receipt ID
1f29d19b-ca7e-4e65-bfa5-d6b46b9f34ae
Output Hash
b9a13adbf1cfc60f7caf93c1c5d0e6742e94b7d204c883b130eeb6443a57bd8f
Signature
ed25519:2eaf6c5f0377b77ddd3b4c68ea7680d25f93c4277c1bc0c626b577a6fd8ed5aaafcf1af7167bb80d9c7ddde7e778c6e8e631f13abe5e9b0689cdc873ed6e4c05
Public Key
ed25519:1aafb422ddb6beba51f7cabe4ce1c400d51da23b2ec829bd74c9f89bb99801da
Parent
(genesis)
Plane
fast
Verify this in your browser

DNS Records

A 1

  • 185.70.42.21

MX 2

  • {"priority":5,"exchange":"mail.protonmail.ch"}
  • {"priority":10,"exchange":"mailsec.protonmail.ch"}

TXT 8

  • google-site-verification=-5wo7THYiFWoq_XABAwEtMrcTdjtiNBHrmBlIWtocqM
  • v=spf1 include:_spf.protonmail.ch ~all
  • abuseipdb-verification=SLIfh7Wm
  • mailru-verification: f224f0d86fde9b63
  • google-site-verification=XFWl0NLw1rOXu2_PafVbnwk1cCd2Oz-cpfwM2crfrYM
  • v=DMARC1; p=quarantine; fo=1; aspf=s; adkim=s;
  • v=STSv1; id=190906205100Z;
  • v=DNSSEC1; (detected)

NS 3

  • ns1.protonmail.ch
  • ns3.protonmail.ch
  • ns2.protonmail.ch

SOA 1

  • {"mname":"ns1.protonmail.ch","rname":"support.protonmail.ch","serial":2604131505}

CAA 3

  • {"flags":0,"tag":"issue","value":"sectigo.com"}
  • {"flags":0,"tag":"issue","value":"letsencrypt.org"}
  • {"flags":0,"tag":"iodef","value":"mailto:security@proton.me"}

TLS Certificates (0)

None.

Subdomains (10)