Proton

proton.me

2 tracked vendors name Proton as a subprocessor, including Maileroo and ReadWorks. We have not found a subprocessor list published by Proton. We monitor 7 of its documents, which we last checked on Nov 11, 2026.

Subprocessors

None extracted.

Web TechnologiesCSV of Proton's web technologies · Atom feed of Proton's web technologies

Proton's homepage made 162 requests to 2 domains.

First party 1 · 162 requests
Proton Astro Floating UI HSTS Open Graph PWA Priority Hints 100% of the page's requests 162

Subprocessor of (2)CSV of the companies listing Proton · Atom feed of the companies listing Proton

2 companies
  • Maileroo maileroo.com Email and collaboration services
  • ReadWorks readworks.org Secure password management and two-factor authentication

Service statusCSV of Proton's status page incidents · Atom feed of Proton's status page incidents

Aug 15: no incident reportedAug 16: no incident reportedAug 17: no incident reportedAug 18: no incident reportedAug 19: no incident reportedAug 20: no incident reportedAug 21: no incident reportedAug 22: no incident reportedAug 23: no incident reportedAug 24: no incident reportedAug 25: no incident reportedAug 26: 1 incident (1 critical)Aug 27: no incident reportedAug 28: no incident reportedAug 29: no incident reportedAug 30: no incident reportedAug 31: no incident reportedSep 1: 1 incident (1 major)Sep 2: no incident reportedSep 3: no incident reportedSep 4: no incident reportedSep 5: no incident reportedSep 6: no incident reportedSep 7: no incident reportedSep 8: no incident reportedSep 9: no incident reportedSep 10: no incident reportedSep 11: no incident reportedSep 12: no incident reportedSep 13: no incident reportedSep 14: no incident reportedSep 15: no incident reportedSep 16: no incident reportedSep 17: no incident reportedSep 18: no incident reportedSep 19: no incident reportedSep 20: no incident reportedSep 21: no incident reportedSep 22: no incident reportedSep 23: no incident reportedSep 24: no incident reportedSep 25: no incident reportedSep 26: no incident reportedSep 27: no incident reportedSep 28: no incident reportedSep 29: no incident reportedSep 30: no incident reportedOct 1: no incident reportedOct 2: 1 incident (1 critical)Oct 3: no incident reportedOct 4: no incident reportedOct 5: no incident reportedOct 6: no incident reportedOct 7: no incident reportedOct 8: no incident reportedOct 9: no incident reportedOct 10: no incident reportedOct 11: no incident reportedOct 12: no incident reportedOct 13: no incident reportedOct 14: no incident reportedOct 15: no incident reportedOct 16: no incident reportedOct 17: no incident reportedOct 18: no incident reportedOct 19: no incident reportedOct 20: no incident reportedOct 21: no incident reportedOct 22: no incident reportedOct 23: no incident reportedOct 24: no incident reportedOct 25: no incident reportedOct 26: no incident reportedOct 27: 1 incident (1 no impact stated)Oct 28: no incident reportedOct 29: no incident reportedOct 30: no incident reportedOct 31: no incident reportedNov 1: no incident reportedNov 2: no incident reportedNov 3: no incident reportedNov 4: no incident reportedNov 5: no incident reportedNov 6: no incident reportedNov 7: no incident reportedNov 8: no incident reportedNov 9: no incident reportedNov 10: no incident reportedNov 11: no incident reportedNov 12: no incident reported

90 days agotoday

  • 4 incidents in 90 days
  • 3 major or critical
  • 3 h 17 min typical time to resolve
  • 6 h 11 min longest major
BeganIncidentImpactLasted
Partial outage on Proton VPN serversno impact stated54 min
MacOS Certification Errors on the Proton Meet & Proton Mail appscritical3 h 17 min
Service disruptionmajor6 h 11 min
Global Outagecritical2 h 18 min
Partial outage on Proton VPN servers in the Dominican Republicno impact stated28 h 52 min
Investigating Incidentminor2 days
Proton Calendar Issueno impact stated—
Power outage on Proton VPN servers in North Macedoniano impact stated2 h 41 min

Incidents per month

0 3 6 Dec 2025: 1 incident (1 no impact stated) · typical time to resolve 21 h 15 min Jan 2026: 2 incidents (1 critical, 1 no impact stated) · typical time to resolve 31 h 53 min Feb 2026: 1 incident (1 no impact stated) · typical time to resolve 3 days Mar 2026: 1 incident (1 no impact stated) · typical time to resolve 16 days Apr 2026: 0 incidents May 2026: 4 incidents (2 minor, 2 no impact stated) · typical time to resolve 24 h 24 min Jun 2026: 5 incidents (2 major, 3 no impact stated) · typical time to resolve 2 h 41 min Jul 2026: 2 incidents (1 minor, 1 no impact stated) · typical time to resolve 2 days Aug 2026: 1 incident (1 critical) · typical time to resolve 2 h 18 min Sep 2026: 1 incident (1 major) · typical time to resolve 6 h 11 min Oct 2026: 2 incidents (1 critical, 1 no impact stated) · typical time to resolve 3 h 17 min Nov 2026: 0 incidents Dec 2025Jan 2026Feb Mar Apr May Jun Jul Aug Sep Oct Nov

critical major minor no impact stated

Components affected

ComponentIncidentsBar
Desktop Apps3
Mobile and Desktop Apps3
Regular Servers3
Bridge2
Browser Extensions2
Free servers2
Incoming Mail2
Lumo by Proton2

As Proton's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)

ChangesCSV of Proton's changes · Atom feed of Proton's changes

None since tracking began.

Rating badge for Proton's site

Proton transparency rating

It updates with the rating.

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