1. Proton VPN — highest privacy score
Proton leads our privacy index thanks to Swiss law, open-source clients, and repeated independent audits by Securitum. RAM-only servers and a transparent warrant canary add credibility.
Visit Proton VPN →Affiliate disclosure. These Visit buttons are affiliate links. Scores and rankings are editorial and unchanged by this relationship. See ethics.
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A no-logs policy means nothing without proof. We rank VPNs that have published independent third-party audits — not self-written PDFs — using our privacy category (25% of total score).
Proton leads our privacy index thanks to Swiss law, open-source clients, and repeated independent audits by Securitum. RAM-only servers and a transparent warrant canary add credibility.
Visit Proton VPN →Mullvad assigns a random account number — no email, no name. Cure53 has audited its apps. Best when you want minimal identity linked to the subscription.
Visit Mullvad →Both publish recurring independent no-logs audits and score 94–96/100 on privacy. NordVPN adds Panama jurisdiction; ExpressVPN operates from the British Virgin Islands with TrustedServer RAM-only tech.
Visit NordVPN →Compare all 15 VPNs on our full comparison table or read the methodology.
Questions in this cluster: how to read a no-logs audit, how to compare audit dates, whether a kill switch failure voids a no-logs claim, and the profiles for Mullvad, Proton VPN, Private Internet Access, and Windscribe. The match engine uses the methodology weights.
Credible audits are conducted by recognised security firms — Deloitte, KPMG, Cure53, Securitum — with published reports. Self-assessments or vague 'security reviews' without a firm name score lower in our ethics category.
No audit can prove future behaviour, but it verifies configuration and policy at audit time. Prefer providers with annual or recurring audits and RAM-only server architecture.
Surfshark (Deloitte) and Proton free tier (Securitum) offer audited options under $3/mo. Ivacy and many ultra-cheap VPNs lack published independent audits — we penalise that in scoring.