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Cookie Policy

Last updated: February 22, 2026

1. What is a Cookie?

A cookie is a small text file stored on your device (computer, tablet, smartphone) when you visit a website. Cookies allow the site to remember your actions and preferences over a period of time.

2. Cookies Used by Cosmos Darkroom

2.1 Essential Cookies (always active)

These cookies are strictly necessary for the Service to function. They cannot be disabled.

CookiePurposeDurationThird-party
authjs.session-tokenNextAuth authentication sessionSession / 30 daysNo (1st party)
authjs.csrf-tokenCSRF protectionSessionNo (1st party)
authjs.callback-urlPost-login redirectSessionNo (1st party)

2.2 Local Storage

KeyPurposeDuration
cookie_consentStores your cookie consent choicePersistent
cosmos_languageLanguage preference (FR/EN)Persistent

2.3 Analytics Cookies (with consent)

These cookies are only set if you click "Accept" on the consent banner. They are used for anonymized audience measurement.

CookiePurposeDurationThird-party
_gaGoogle Analytics 4 identifier2 yearsGoogle LLC (USA)
_ga_*GA4 session distinction2 yearsGoogle LLC (USA)

No advertising or commercial tracking cookies are used.

3. Consent and Management

On your first visit, a banner asks you to accept or decline analytics cookies. Your choice is stored in localStorage.

  • Accept: Google Analytics cookies are activated
  • Decline: no analytics cookies are set
  • Change your choice: delete the "cookie_consent" key in your browser settings (Developer Tools → Application → Local Storage) then reload the page

4. Legal Basis

Essential cookies are based on our legitimate interest in ensuring the Service functions properly (GDPR Art. 6§1(f)). Analytics cookies are based on your consent (GDPR Art. 6§1(a), ePrivacy Directive 2002/58/EC Art. 5§3).

5. Contact

For any questions: sebastien.voerman@gmail.com