Cookie Policy

Last updated: December 2025

1. What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences and improve your browsing experience. Some cookies are essential for the website to function, while others are optional.

2. Our Privacy-First Approach

LynxPrompt takes a minimal cookie approach. We only use cookies that are strictly necessary for the website to function. We do not use:

  • Advertising or marketing cookies
  • Cross-site tracking cookies
  • Third-party analytics cookies
  • Social media tracking cookies

Our analytics provider (Umami) is completely cookieless and self-hosted on EU servers, respecting your privacy while helping us improve the service.

3. Cookies We Use

The following table lists all cookies used by LynxPrompt:

Essential Cookies (Strictly Necessary)

These cookies are required for the website to function. They cannot be disabled without breaking core functionality. No consent is required under GDPR for strictly necessary cookies.

CookieProviderPurposeDuration
next-auth.session-tokenLynxPromptStores your authentication session30 days
__Secure-next-auth.session-tokenLynxPromptSecure session token (HTTPS only)30 days
next-auth.csrf-tokenLynxPromptProtects against cross-site request forgery attacksSession
next-auth.callback-urlLynxPromptStores redirect URL during authenticationSession

Security Cookies (Bot Protection)

These cookies are set by Cloudflare Turnstile to protect the website from automated attacks and bots. They are considered strictly necessary for security purposes.

CookieProviderPurposeDuration
cf_clearanceCloudflareStores proof that you passed a security challenge30 min - 1 day
__cf_bmCloudflareBot management and security verification30 minutes

For more information about Cloudflare's cookies, see their cookie documentation.

Local Storage (Not Cookies)

We also use browser local storage for non-essential preferences. Unlike cookies, this data is never sent to our servers:

KeyPurposeDuration
themeRemembers your light/dark mode preferenceUntil cleared
lynxprompt-cookie-notice-dismissedRemembers that you dismissed the cookie noticeUntil cleared

4. Third-Party Services

Some third-party services we use may set their own cookies when you interact with them:

Stripe (Payment Processing)

When you make a payment, Stripe may set cookies for fraud prevention and security. These are set only during the checkout process.

Stripe Cookie Policy →

OAuth Providers (GitHub, Google)

When you sign in with GitHub or Google, you are redirected to their sites where they may set their own cookies. This happens on their domains, not ours.

5. Managing Cookies

You can control cookies through your browser settings. Most browsers allow you to:

  • View what cookies are stored on your device
  • Delete individual cookies or all cookies
  • Block cookies from specific sites
  • Block all third-party cookies

Note: Blocking essential cookies will prevent you from logging in and using key features of LynxPrompt.

Browser cookie settings:

6. Legal Basis

Under the GDPR and the ePrivacy Directive, strictly necessary cookies do not require consent. Since LynxPrompt only uses essential cookies for authentication and security, we rely on the legitimate interest and necessity for service provision legal bases.

We inform you about our cookie usage through this policy and the cookie notice banner, but we do not require you to "accept" essential cookies as they are necessary for the service to function.

7. Updates to This Policy

We may update this Cookie Policy from time to time. If we add any non-essential cookies in the future, we will update this policy and implement a proper consent mechanism.

8. Contact Us

If you have questions about our use of cookies, please contact us at [email protected].

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