Every number, traced to its source.
Independent VPN reviews with open formulas, downloadable evidence, no affiliate commissions, and no advertising. Rankings answer only to the published evidence.
VPNTestor professional review team
Openscore VPN
Reviews are independently tested and audited by the Openscore VPN team, then checked again and confirmed by VPNTestor before publication.
VPNTestor is the independent publishing and verification platform.
VPNs we cover
The ranking
weighted toward what we verify · 4 providers
Each bar is the interval a score provably sits in: the left edge is what a provider has earned outright, the right edge is the most it could reach if everything we have not measured went perfectly. The mark is the published figure, see the methodology.
How a score is built
Gather primary evidence
We read each provider's own privacy policy, terms, audits and pricing, and record the exact passage.
Cite every claim
Each fact links to its source with the quoted text and the date we captured it, so you can check it yourself.
Compute the score
An open formula turns the evidence into one number, capped by how well each input is verified.
What we weigh
Eleven dimensions, weighted toward what we can verify from primary sources.
From the notebook
All entriesVPNTestor inspected FeiLiu VPN's three public OpenFlyX 1.0.1 downloads. The macOS package is signed and notarized, Android uses APK Signature Scheme v2, and the Windows installer is unsigned. No final score is issued before runtime testing.
VPNTestor froze official Proton VPN Android 5.19.61.0 and Windows 5.1.5 releases, verified hashes and signing, reviewed production hardening, open-source clients, the 2026 Securitum no-logs audit and the current transparency report.
VPNTestor and Openscore VPN completed a read-only production review of SingLinkVPN. Its design matched the no-activity-logs policy, and James Robert Smith signed the final report manifest.
Reading a score
- Measured
- We produced this number ourselves and can reproduce it.
- Documented
- Read out of a primary document: a privacy policy, an audit report, or source code.
- Vendor-claimed
- Asserted by the provider. We have not independently verified it, and the score is capped accordingly.
- No evidence
- We found nothing to score. The dimension is excluded from the weighted mean rather than counted as zero.
Weighting: Default (evidence-weighted). Weights are allocated toward what this site independently verifies. Speed and streaming are vendor-claimed rather than measured here, so they carry roughly half the weight the industry standard assigns them; that weight moves to privacy, transparency and server authenticity, all of which are checked against primary documents or our own probe network.