Cookie Policy

Last updated: February 7, 2026

1. Introduction

This Cookie Policy explains how Deepest ("we," "our," or "us") uses cookies and similar tracking technologies when you visit our website at deepest.app (the "Service"). This policy provides you with clear and comprehensive information about the cookies we use and the purposes for which we use them.

2. What Are Cookies?

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

Cookies can be "persistent" or "session" cookies. Persistent cookies remain on your device after you close your browser, while session cookies are deleted when you close your browser.

3. Types of Cookies We Use

We use the following categories of cookies:

3.1 Essential Cookies

These cookies are necessary for the Service to function properly. They enable core functionality such as security, authentication, and session management. You cannot opt out of these cookies as the Service would not function without them.

  • Authentication cookies: Keep you logged in during your session
  • Security cookies: Help protect against unauthorized access and fraud
  • Session cookies: Maintain your session state across page requests
  • CSRF tokens: Protect against cross-site request forgery attacks

3.2 Preference Cookies

These cookies remember your preferences and settings to enhance your experience:

  • Theme preference: Remember your light/dark mode selection
  • Language settings: Store your preferred language
  • UI preferences: Remember sidebar state and other interface choices

3.3 Analytics Cookies

These cookies help us understand how visitors interact with the Service by collecting and reporting information anonymously. We use this data to improve our Service.

  • PostHog: Privacy-focused analytics to understand feature usage and user journeys
  • Performance metrics: Track page load times and application performance

3.4 Marketing/Referral Cookies

These cookies track referrals and affiliate attributions:

  • Referral tracking: Track affiliate referrals to properly credit partners
  • Campaign tracking: Understand which marketing campaigns bring users to our Service

4. Third-Party Cookies

Some cookies are placed by third-party services that appear on our pages. We do not control these cookies. The third parties that may set cookies on your device include:

  • Supabase: Authentication and session management
  • Stripe: Payment processing (only when making payments)
  • PostHog: Privacy-focused analytics
  • Sentry: Error tracking and performance monitoring

5. Cookie Duration

The cookies we use have varying durations:

  • Session cookies: Deleted when you close your browser
  • Authentication cookies: Up to 7 days (or until you log out)
  • Preference cookies: Up to 1 year
  • Analytics cookies: Up to 1 year
  • Referral cookies: 30 days

6. Managing Cookies

You have several options for managing cookies:

Browser Settings

Most web browsers allow you to control cookies through their settings. You can:

  • View what cookies are stored on your device
  • Delete all or selected cookies
  • Block all cookies or cookies from specific sites
  • Block third-party cookies
  • Accept all cookies
  • Receive a notification when a cookie is set

Please refer to your browser's help documentation for instructions on how to manage cookies:

  • 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 → Cookies and site data

Impact of Blocking Cookies

Please note that blocking or deleting cookies may impact your experience on the Service:

  • You may need to log in more frequently
  • Your preferences may not be saved
  • Some features may not work properly
  • You may see less relevant content

7. Similar Technologies

In addition to cookies, we may use other similar technologies:

  • Local Storage: Used to store data locally in your browser (e.g., theme preferences, chat drafts)
  • Session Storage: Similar to local storage but cleared when you close your browser
  • IndexedDB: Used for storing larger amounts of structured data locally

8. Do Not Track

Some browsers have a "Do Not Track" (DNT) feature that signals to websites that you do not want your online activity tracked. Because there is no consistent industry standard for recognizing or honoring DNT signals, we do not currently respond to DNT browser settings. However, we are committed to privacy and provide other ways to manage tracking as described above.

9. Updates to This Policy

We may update this Cookie Policy from time to time to reflect changes in technology, legislation, or our data practices. When we make material changes, we will update the "Last updated" date at the top of this policy and notify you through the Service or by email.

10. Contact Us

If you have any questions about our use of cookies or this Cookie Policy, please contact us:

Email: privacy@deepest.app