proton.me

Observed Jul 18, 2026, 12:01 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onProton

Email byProtonMail

Secured byLet's Encrypt

Also usesGoogle Search ConsoleZoom

security

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat proton.me actually stands on - every host below is a signed observation

proton.me

A / AAAA

185.70.42.45

Protonserves the site

ns1.proton.mens2.proton.mens3.proton.me

proton.meanswers its DNS

mail.protonmail.chmailsec.protonmail.ch

ProtonMailreceives its email

TLS

proton.me

Let's Encryptissued its certificate

DNS Records

A 1

185.70.42.45

MX 2

10mail.protonmail.ch
20mailsec.protonmail.ch

TXT 13

yandex-verification: 95a7888a0f987e6a
v=spf1 include:_spf.protonmail.ch ~all
linkedin-site-verification=01e79150-bf68-4e0c-ad04-822dc1015b3b
protonmail-verification=5262a92f988e64f1be1362138befdf1e19d6a4c1
google-site-verification=2FGIDo-Gf-lWE6t_gWd9gpPTehHD85hbNiEujPVgysc
google-site-verification=4UIZgETX8lGnv0WwpeJJbszo9daKOdXXYBKCA2XLf94
google-site-verification=MUjtKY-4uQAjE92Z2-s1nm9m4mvdqY2z6HCvi_Bj4so
google-site-verification=QviHfE1VQ57-tDmDLxM6BQH1mdgvdQ_0QsIvCht2IaU
google-site-verification=_ayl1WqWIag2WkIbK4sNg_x3NCT5nYOl_DgtFPTYKeg
zoom-domain-verification=ZOOM_verify_5990c1fbb09d4c6aba062cded6cbdf06

NS 3

ns1.proton.me
ns2.proton.me
ns3.proton.me

SOA 1

ns1.proton.me support.proton.me

CAA 2

issue "letsencrypt.org"
issue "sectigo.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`proton.me`	C=US, O=Let's Encrypt, CN=YR2	Wed, 07 Oct 2026 13:13:52 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for proton.me. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/proton.me">
  <img src="https://domaindrift.io/badge/proton.me.svg"
       width="300" height="64" alt="DomainDrift signed observations for proton.me">
</a>

Ed25519 Receipt

Receipt ID: 222faf6b-5510-445c-b91a-f7037b6a707c
Output Hash: 31f08accb53b3313c412674746e65d9fc6ff58d5278bdd4e5bcf0bde878f4124
Signature: ed25519:284201e2827909ddc7836e7f4ddba7afc3b5e076265ef4a4761868273a031bf1ee9e58d82f5978e68cf77bb63d855c0d23596e5a9e4822a34ff2124844390207
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/proton.me