Fair-QR knowledge base
Plan, test, and operate QR codes reliably
These resources go beyond product claims. They clearly separate standards, practical recommendations, first-party architecture, and test results that have not yet been collected.
Print guide
How to print QR codes: size, contrast, and quiet zone
A technical QR code print guide covering the quiet zone, module size, error correction, logo rules, and a verifiable preflight checklist.
Test methodology
QR code scan testing: a reproducible test method
A reproducible QR scan protocol for devices, distances, lighting, surfaces, logos, and success rates without invented benchmark results.
Architecture and privacy
QR code privacy: Offline QR and Smart QR explained
A technical Fair-QR architecture overview: what stays local in Offline QR, which normal website data exists, and how Smart QR is processed separately.
Our editorial rule
We label recommendations as recommendations, link to primary sources, and never publish invented test results. Content is reviewed when the product or relevant standards change.