Privacy Policy

Last updated: July 28, 2026

1. Data We Collect

CheckReaction is a static website. We do not run a backend server or database. We collect minimal data through:

• Google Analytics 4 (GA4): Anonymous usage statistics — page views, session duration, device type, and geographic region (country-level only). GA4 does not collect IP addresses or personally identifiable information by default.
• Local Storage: Your reaction time test history (last 100 results) is saved in your browser's localStorage. This data never leaves your device.

2. Cookies

GA4 uses first-party cookies (_ga, _ga_*) for session measurement. These contain anonymous client IDs, not personal information. You can block cookies in your browser settings without affecting the games or tests.

3. Third-Party Games

Some games are embedded via iframe from famobi.com. Famobi may set their own cookies and collect gameplay data per their privacy policy. We do not share any data with them — your interaction is directly between you and the iframe source.

4. How We Use Data

GA4 data helps us understand which games and tests are popular, which countries our visitors come from, and how people discover our site. We use this to improve content and prioritize new features. We never sell, share, or use this data for advertising targeting.

5. Your Rights

Since we collect no personal data, there is nothing to request access to or delete. You can clear your localStorage at any time through your browser settings. To opt out of GA4 tracking, use a browser extension like uBlock Origin or enable "Do Not Track" in your browser.

6. Children's Privacy

Our games and tests are suitable for all ages. We do not knowingly collect any personal information from children under 13. If you believe your child has provided personal data through a third-party game iframe, please contact the game provider directly.

7. Contact

Questions about this policy? Contact us.