Reaction Lab
YOUR DATA

Privacy, plainly.

The reaction tools work locally in your browser.

What happens to test results

The visual, auditory and choice tools retain their current session in the page’s memory. The score interpreter, notebook, checklist and distance calculator process your entries locally. These tools do not upload your scores or build public profiles. Reloading, navigating away or resetting clears unsaved entries.

Downloads are your choice

Download buttons create a file from the current result in your browser. The file is saved through your browser’s normal download behavior. It is not sent to our server by the tool. You decide whether to keep or share it.

Sound and permissions

The sound test generates a tone after you interact with the page. It does not request microphone permission or record ambient audio. No camera or location access is required.

Website requests

Loading a website necessarily makes requests for pages, scripts, fonts and images. Hosting infrastructure may process technical information such as IP addresses and request logs. External source links lead to other websites, whose own policies apply when you open them.

Traffic analytics

We use Google Analytics 4 to understand page visits, traffic sources and general website engagement. Google Analytics uses cookies and processes technical information about visits. Test scores, notebook entries and calculator inputs are not sent to Google Analytics by our tools. Advertising personalization and Google signals are disabled in our tag configuration. You can block analytics using your browser settings or a content blocker.

Scope

This notice describes the public reaction tools in this version, reviewed September 22, 2026. It does not claim that downloaded files are encrypted or that your browser and hosting provider retain no technical data. Do not enter names, health records or other sensitive information into the optional notebook fields.