Privacy Policy#

Effective Date: February 12, 2026
Last Updated: February 12, 2026

At CheckReactionTime, we are committed to protecting your privacy and ensuring that your personal information is handled with care. This Privacy Policy outlines how we collect, use, and safeguard your data when you use our website and services.

Our Privacy-First Approach#

CheckReactionTime is designed with privacy at its core. We believe in providing valuable tools without compromising your personal data or tracking your behavior across the web.

Key Privacy Principles:

• ✅ No account registration required - Use our tools anonymously
• ✅ Local data storage - Your test results stay on your device
• ✅ No personal data collection - We don’t ask for or store personal information
• ✅ No third-party tracking - No social media pixels or advertising trackers
• ✅ Transparent operations - Clear about what data we handle

Information We Collect#

Data We DO NOT Collect#

• Personal identifiers (names, emails, addresses)
• User account information
• Personal demographics
• Device fingerprinting
• Location data
• IP addresses for tracking purposes
• Social media profiles or connections

Data Stored Locally on Your Device#

The following data is stored exclusively in your browser’s local storage and never transmitted to our servers:

Reaction Time Test Results:

• Test session results (reaction times, accuracy, timestamps)
• Performance analytics and metrics
• Historical data for trend analysis
• Test configuration settings (rounds, delay settings, mouse click preferences)

Number Memory Test Results:

• Game state and progress
• Session settings and preferences
• Performance history

User Preferences:

• Display settings
• Test configuration options
• Analytics viewing preferences

This data remains on your device and is only accessible to you. You can clear this data at any time through your browser settings.

Minimal Technical Data#

We may collect minimal, non-identifying technical information solely for improving service reliability:

• Basic page performance metrics
• Error reporting for debugging
• General usage statistics (anonymized)

This technical data cannot be linked to individual users and is used only for service improvement.

How We Use Information#

Local Data Usage#

Data stored on your device is used to:

• Display your test results and performance analytics
• Track your progress over time
• Remember your preferred settings
• Provide personalized insights and recommendations

Technical Data Usage#

Any minimal technical data we collect is used to:

• Improve website performance and reliability
• Fix bugs and technical issues
• Understand general usage patterns to enhance user experience
• Ensure cross-browser compatibility

Data Storage and Security#

Local Storage#

• Location: Your browser’s local storage on your device
• Control: You have complete control over this data
• Deletion: You can clear this data anytime via browser settings
• Persistence: Data persists until you clear it or uninstall your browser

Technical Security Measures#

• HTTPS encryption for all communications
• Secure hosting infrastructure
• Regular security updates and monitoring
• No sensitive data transmission to external servers

Third-Party Services#

We do not use:

• Google Analytics or similar tracking services
• Social media tracking pixels
• Advertising networks
• Third-party data collection tools
• Marketing automation platforms

Our website is designed to function independently without relying on external tracking or data collection services.

Your Rights and Choices#

Data Control#

• Access: Review all your data through the analytics dashboard
• Deletion: Clear your data anytime through browser settings
• Export: Download your data using built-in export features
• Settings: Adjust preferences for data collection and display

Browser Settings#

You can control data storage by:

• Disabling local storage in browser settings
• Using incognito/private browsing mode
• Clearing browser data regularly
• Adjusting cookie and storage preferences

Children’s Privacy#

CheckReactionTime does not knowingly collect personal information from children under 13. Since we don’t collect personal data from any users, our service is inherently safe for children. However, we recommend parental supervision for all online activities.

Changes to This Privacy Policy#

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. When we make changes:

• We will update the “Last Updated” date at the top of this policy
• Significant changes will be highlighted on our website
• Continued use of our service constitutes acceptance of any updates

International Users#

CheckReactionTime is accessible worldwide. By using our service, you acknowledge that:

• Your locally stored data remains on your device regardless of location
• We comply with applicable privacy laws including GDPR, CCPA, and other regional regulations
• No personal data is transferred internationally since we don’t collect it

Contact Information#

If you have questions about this Privacy Policy or our privacy practices:

Website: CheckReactionTime
For general inquiries: Use our contact form on the website

We aim to respond to privacy-related inquiries within 48 hours.

Transparency Report#

We believe in complete transparency about our data practices:

• Personal data collected: None
• Third-party trackers: None
• Data sharing: None
• Government requests received: None (as we have no personal data to provide)
• User data breaches: None (as we store no personal data on our servers)

Technical Implementation#

For technically minded users, here’s how we implement privacy:

• Local storage only: All user data uses browser localStorage/sessionStorage
• No cookies for tracking: Essential cookies only (session management)
• No external requests: Test results and analytics computed client-side
• Open source friendly: Modern web standards without proprietary tracking
• Client-side processing: All analytics and calculations happen in your browser

This Privacy Policy reflects our commitment to providing useful tools while respecting your privacy and maintaining the highest standards of data protection.