proton.me

Observed Jul 21, 2026, 19:09 UTC (23h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

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: rcpt_8a89f4569b7db491
Output Hash: a6f2522ca8c5fa75b5469cb48e158b219c4fbad9014c8985ebfa506c632f56d5
Signature: ed25519:5994dfc56657fc94fdc4619960b513b720dd16f3f16ee2a3f582652528181be98bc9b43bbc64fbad2544d2a641e6d9382e3305e31668c0ca143f56d1e9fff002
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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