Legal

Cookie Policy

Last updated: January 15, 2026

1. What Are Cookies

Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences, understand how you use the site, and improve your experience.

ReplayChess uses cookies and similar technologies (such as local storage and session storage) to operate the Platform effectively.

3. Essential Cookies

These cookies are strictly necessary for the Platform to function. They enable core features such as user authentication, game session management, and security. Without these cookies, the Platform cannot operate properly.

Essential cookies cannot be disabled. They do not store any personally identifiable information beyond what is required for authentication.

  • __clerk_session — Manages authenticated user sessions
  • __csrf_token — Prevents cross-site request forgery attacks
  • game_session — Maintains active game state during play

4. Performance Cookies

Performance cookies help us understand how visitors interact with the Platform by collecting anonymous aggregate data. This information helps us identify and fix issues, optimize page load times, and improve overall user experience.

  • Page load and rendering performance metrics
  • WebSocket connection stability monitoring
  • Error frequency and type tracking
  • Feature usage analytics (anonymized)

5. Functional Cookies

Functional cookies remember your preferences and settings to provide a personalized experience. These cookies enhance your use of the Platform but are not strictly necessary.

  • Chess board theme and piece set preferences
  • Sound and notification settings
  • Analysis panel layout and configuration
  • Language and timezone preferences

6. Marketing Cookies

Marketing cookies track visitors across websites to enable us to measure the effectiveness of our advertising campaigns. We use minimal marketing tracking and do not sell data to advertisers.

These cookies are only set if you arrive via a marketing campaign link. You can opt out at any time through your browser settings.

7. Managing Cookies

You can manage or delete cookies through your browser settings. Here's how to do it in popular browsers:

  • Chrome: Settings → Privacy and Security → Cookies and other site data
  • Firefox: Settings → Privacy & Security → Cookies and Site Data
  • Safari: Preferences → Privacy → Manage Website Data
  • Edge: Settings → Cookies and site permissions → Manage and delete cookies

Note: Disabling essential cookies will prevent you from using key features of the Platform, including logging in and playing games.

8. Third-Party Cookies

Some cookies are placed by third-party services that appear on our pages:

  • Clerk — Authentication session management
  • Stripe — Payment security and fraud prevention
  • Vercel Analytics — Anonymous performance monitoring

These providers set their own cookies subject to their respective privacy policies.

9. Updates to This Policy

We may update this Cookie Policy to reflect changes in our practices or for operational, legal, or regulatory reasons. Changes will be posted on this page with an updated "Last Updated" date.

10. Contact

For questions about our use of cookies, please see our Privacy Policy or contact us at privacy@playchess.tech.