Criteria that actually matter
Jurisdiction & ownership
Where the company is legally based determines which governments can compel data. Prefer providers outside 14-Eyes intelligence-sharing jurisdictions, with publicly named ownership — anonymous "offshore" providers are a red flag, not a feature.
No-logs — proven, not promised
"No logs" is a claim; look for evidence: independent audits (PrivacyTools lists audited providers), court cases where providers had nothing to hand over, or warrant canaries. Proton VPN's explainer covers what genuine no-logs architecture looks like.
Protocol & implementation
WireGuard for speed, OpenVPN for compatibility; both fine if correctly implemented. Avoid providers pushing proprietary protocols with no third-party audit.
Kill switch & leak protection
A kill switch that actually works (verify it — disconnect mid-test), plus DNS/IPv6 leak prevention. Test on ipleak.net before trusting it.
Criteria that mostly don't
- Server count — 3,000 virtual servers on the same hardware means little; latency to your routes matters more.
- "Military-grade encryption" — AES-256 is a marketing term; every serious VPN uses it.
- Obfuscated server branding — useful in censored regions, irrelevant elsewhere.
- Anonymous payment options — nice bonus, but the provider's jurisdiction matters far more than how you paid.
Realistic expectations
- Speed loss: 10–30% typical on good routes; more on distant servers.
- Not anonymity: a VPN shifts trust from your ISP to the provider — it doesn't make you invisible.
- Not legality: what's illegal without a VPN stays illegal with one.
- Streaming/torrenting: varies by provider and changes monthly; test before committing to a long plan.
How to test before paying
- Use the trial/money-back window — measure speed at your real usage times.
- Run ipleak.net and dnsleaktest.com — confirm no DNS or IPv6 leaks.
- Test the kill switch under load — disconnect mid-download, check for leaks.
- Read recent independent reviews — check for ownership changes and fresh audit results, not just old rankings.