1. What Are Cookies?

Cookies are small text files stored on your device when you visit our website. They help us provide a better user experience, remember your preferences, and analyze platform usage.

2. Types of Cookies We Use

2.1 Essential Cookies (Required)

These cookies are necessary for the platform to function:

Authentication: NextAuth.js session cookies to keep you logged in
Security: CSRF tokens to prevent attacks
Load Balancing: Server routing cookies

2.2 Functional Cookies (Optional)

These cookies enhance your experience:

Preferences: Remember your map settings, methodology choices
Language: Store your language preference
UI State: Remember sidebar collapse state, theme

2.3 Analytics Cookies (Optional)

These cookies help us understand how users interact with the platform:

Vercel Analytics: Page views, performance metrics
Error Tracking: Crash reports and error logs
Feature Usage: Which features are most used

2.4 Third-Party Cookies

Some features use third-party services that may set cookies:

Google Earth Engine: For satellite data access
Mapbox: For map rendering and screenshots
Stripe: For payment processing

3. Cookie Duration

Cookie Type	Duration
Session Cookies	Deleted when you close your browser
Authentication	30 days (or until logout)
Preferences	1 year
Analytics	2 years

4. Managing Cookies

You can control cookies through:

4.1 Browser Settings

Chrome: Settings → Privacy and Security → Cookies
Firefox: Settings → Privacy & Security → Cookies
Safari: Preferences → Privacy → Cookies
Edge: Settings → Cookies and Site Permissions

4.2 Opt-Out Links

Vercel Analytics: Automatically respects "Do Not Track"
Google Services: Google Analytics Opt-out

5. Impact of Disabling Cookies

If you disable cookies:

❌ You will not be able to log in (authentication cookies required)
❌ Your preferences will not be saved
❌ Some features may not work properly
✅ Analytics cookies can be disabled without affecting core functionality

6. Updates to This Policy

We may update this Cookie Policy periodically. Changes will be posted on this page with an updated "Last updated" date.

7. Contact Us

For questions about our use of cookies, contact us at: hello@nusacarbon.com