Cookie Policy
Effective: March 19, 2026
1. What Are Cookies
Cookies are small text files stored on your device when you visit a website. They help the Platform function correctly, remember your preferences, and understand how you use our services.
2. Cookies We Use
| Cookie | Purpose | Type | Duration |
|---|---|---|---|
| authjs.session-token | Authentication — maintains your signed-in session | Essential | 30 days |
| authjs.csrf-token | Security — prevents cross-site request forgery attacks | Essential | Session |
| authjs.callback-url | Authentication — stores redirect destination after sign-in | Essential | Session |
| _vercel_insights | Analytics — anonymous page view and performance metrics | Analytics | 1 year |
3. Local Storage
In addition to cookies, the Platform uses browser local storage for:
- Session memory — corridors viewed, session count, workspace preferences (never transmitted to servers)
- Theme preferences — dark/light mode selection
- Onboarding state — calibration completion status
Local storage data stays on your device and is not shared with third parties.
4. Essential Cookies
Essential cookies are required for the Platform to function. They enable authentication, security protections, and session management. These cannot be disabled without breaking core functionality.
5. Analytics Cookies
We use Vercel Analytics to collect anonymous usage data including page views, navigation patterns, and performance metrics. This data helps us improve the Platform. Analytics cookies can be disabled in your browser settings.
6. Third-Party Cookies
The Platform does not use advertising cookies or tracking pixels. We do not share cookie data with advertising networks or data brokers.
7. Managing Cookies
You can control cookies through your browser settings. Most browsers allow you to block or delete cookies. Note that disabling essential cookies will prevent you from using authenticated features of the Platform.
8. Contact
For questions about our use of cookies, contact privacy@gtcxprotocol.org