It arrives ready
The challenge becomes clickable only after its private flight is ready on the server.
GlintProof replaces image grids with one tiny, private moment of hand-and-eye attention—calm for people, awkward for general-purpose agents.
No card required · 5,000 checks every monthGlintProof human check
When the firefly is ready, click the glow once and follow its three-second flight.
Use a passkey, trusted signed-in device, email verification, or support route alongside GlintProof. This demo does not add an insecure bypass.
A person sees a bright moving target and instinctively follows it. GlintProof gives normal visual-motor lag plenty of room while requiring a dense, fresh stream of perception and action.
The challenge becomes clickable only after its private flight is ready on the server.
Desktop visitors click once. Touch visitors naturally trace with a finger.
Friendly feedback explains the result without profiling how someone moves.
Drop in the widget with a public site key, listen for a verified event, then redeem its short-lived token from your server using a secret key.
Read the 5-minute guide<glint-proof site-key="gp_site_…"> </glint-proof> glintproof:verified → token