Effective August 22, 2026

Privacy policy

The core mouse tests process observed browser events locally. Raw wheel, click, and button samples are not uploaded to a Mouse Diagnostic server.

Information processed during tests

While a test is active, the page temporarily stores event timestamps, wheel delta values and modes, or logical mouse button codes in browser memory. Resetting, rerunning, closing, or refreshing the page discards that session data.

Permissions

The site does not request camera, microphone, location, Bluetooth, USB, clipboard, notification, or fullscreen permission.

Analytics and cookies

We use Google Analytics 4 to understand aggregate site use, such as pages visited, approximate location, browser and device information, and time spent on pages. Google may use cookies or similar identifiers for this measurement. We do not send raw mouse wheel, click, or button samples to Google Analytics.

A local-storage value is used only to remember your light, dark, or system theme preference. For more information about how Google handles information, see Google’s Privacy Policy.

Hosting logs

Like most websites, the hosting provider may process standard request information such as IP address, user agent, requested URL, and time for security and delivery. Raw mouse test samples are not part of those requests.

Contact

For a privacy question, use the contact page.