Cookie Policy

KEYSTONE. - Minerals Data Observatory

Version: 1.0
Effective date: September 27, 2026
Last updated: September 27, 2026

1. What are cookies

Cookies are small text files that a website stores in your browser when you visit it. They allow the site to remember your actions and preferences (such as language, session state or subscription basket) for a period of time, so you do not have to re-enter them on every visit.

Cookies can be set by the site you are visiting ("first-party cookies") or by a third-party service embedded in it ("third-party cookies").

2. How KEYSTONE. uses cookies

We use cookies and equivalent technologies (such as localStorage) to:

Keep you signed in and remember your session state;
Remember your language and display preferences (such as light/dark theme).

We do not currently use cookies for analytics, advertising profiles, cross-site tracking, or selling your information.

3. Categories of cookies we use

Category	Purpose	Consent required?
Strictly necessary	Authentication session (via our identity provider, Clerk), language and theme preference	No
Analytical	Not currently used	N/A
Marketing / tracking	Not used	N/A

We do not currently set any analytical or marketing cookies. If that changes in the future, we will update this policy and, where the law requires it, ask for your consent before activating them.

4. Third-party cookies

Some Platform components rely on third parties that may set their own cookies:

Stripe (payments) - sets cookies required for fraud prevention during checkout;
Vercel / Cloudflare (hosting & edge) - may set functional cookies for request routing and security.

We review these partners to keep the footprint minimal.

5. Managing cookies in your browser

You can block, delete or restrict cookies at any time via your browser settings. Guides:

Chrome: support.google.com/chrome
Safari: support.apple.com/safari
Firefox: support.mozilla.org
Edge: support.microsoft.com/edge

Blocking strictly necessary cookies will prevent sign-in and subscription flows from working.

6. Changes to this policy

We may update this Cookie Policy to reflect changes in the cookies we use or in legal requirements. Material changes will be communicated by email to registered users or by a notice on this page.

7. More information

This Cookie Policy should be read together with our Privacy Policy, which covers the wider processing of personal data. For any questions, please use our contact page.