Privacy policy
Your test results stay local.
Last updated: July 29, 2026
What this policy covers
This policy covers reactiontimetest.click and the Reaction Time Test Chrome extension.
Scores and browser storage
Reaction times, best results, recent runs, streaks, and other game state are processed in your browser. The website and extension may use localStorage to keep a bounded local history. This information is not uploaded to an account or results database.
Analytics
The website uses a Plausible-compatible analytics service to count aggregate page visits. Test scores and local history are not attached to analytics events. The Chrome extension does not include analytics or advertising code.
Chrome extension boundary
The Chrome extension does not read website content and does not request Chrome storage, tabs, host, or background permissions. Its local game state remains in the extension page unless you choose to clear it.
Hosting data
Cloudflare may process standard request information, such as IP address, browser details, and security signals, to deliver and protect the website under its own terms.
Sharing
Nothing is shared unless you deliberately use a share or challenge action. Review a generated image or link before sending it because anyone who receives it may be able to view the included result.
Support messages
If you email us, we receive the address and message content you choose to send. We use it to answer the request, investigate a problem, or comply with a legal obligation.
Your controls
Clear site or extension storage in your browser to delete local results. Privacy and support requests can be sent to [email protected].