Note

Uncertain SystemsUncertain Systems/
Cookie Policy

Cookie Policy

Last updated: February 2026

1. What Are Cookies

Cookies are small text files that are placed on your computer or mobile device when you visit a website. They are widely used to make websites work more efficiently and to provide information to website owners.

2. How We Use Cookies

Uncertain Systems uses cookies for the following purposes:

  • Essential Cookies: Required for the website to function properly, including authentication and security.
  • Payment Cookies: Set by Stripe during checkout to process payments securely. Only present during the payment flow.
  • Privacy-Friendly Analytics: We use Vercel Web Analytics and Speed Insights to measure aggregate page views, referrers, and performance. These services do not use cookies and do not collect personal data.

3. Types of Cookies We Use

Essential Cookies

CookiePurposeDuration
sb-auth-tokenAuthentication session (Supabase)Session
sb-refresh-tokenSession refresh7 days

What We Don't Use

  • No cookie-based analytics or advertising trackers
  • No advertising cookies
  • No third-party marketing cookies

4. Third-Party Cookies

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

  • Supabase: For authentication and user session management
  • Stripe: For secure payment processing during checkout
  • Vercel: Cookieless, aggregated website analytics and performance monitoring (no personal data stored)

5. Managing Cookies

Most browsers allow you to refuse or accept cookies, delete existing cookies, and set preferences for certain websites. Here's how to manage cookies in popular browsers:

  • Google Chrome
  • Mozilla Firefox
  • Safari
  • Microsoft Edge

Note: Disabling essential cookies will prevent you from logging in and using Uncertain Systems.

6. Updates to This Policy

We may update this Cookie Policy from time to time. Any changes will be posted on this page with an updated revision date.

7. Contact Us

If you have questions about our use of cookies, please contact us at:

Email: daniel@uncertain.systems

Uncertain SystemsUncertain Systems

Uncertain Systems is creating tools for knowledge building on autopilot.

Product

  • Build Understanding
  • Knowledge Verification
  • Knowledge Mapping
  • Use cases
  • Pricing
  • Vision
  • Learning Map API

Workspace

  • Create workspace
  • Agent skill file

Resources

  • GitHub
  • Support this Project

Legal

  • Privacy
  • Terms
  • Cookies
  • Legal Notice
@uncertainsysdaniel@uncertain.systems

© 2026 Uncertain Systems (Daniel Colomer). All rights reserved.

Building the open stack for educational technology