Cookie Policy

What cookies are

Cookies are small files a site stores in your browser. TanLens also uses local storage and session storage for preferences and the extension handshake.

Essential cookies

These are required for the Service to work and cannot be switched off:

• Session cookie — keeps you signed in; set by better-auth, HTTP-only and SameSite.
• CSRF and callback cookies — protect sign-in and OAuth flows.
• Locale cookie — remembers English or Chinese (Paraglide).
• Theme cookie — remembers light or dark mode.

Optional cookies

• Analytics — if the operator enables Google Analytics or a self-hosted Plausible instance. Plausible is cookieless; Google Analytics runs in Consent Mode and does not set advertising cookies until you accept.
• Product events — first-touch UTM and referrer cookies (30 days) used to understand which channel brought you to the site.

We do not run advertising or cross-site tracking cookies by default.

Managing cookies

The cookie banner lets you accept or reject optional cookies when you first visit. You can also clear cookies and local storage from your browser settings. Blocking essential cookies will break sign-in and captions.

Local storage

• The live page stores the anonymous viewer id used by broadcast rooms.
• The extension stores its device token, language pair, and overlay position in chrome.storage.local; uninstalling the extension removes it.

Changes

We update this page when the cookie set changes and note the date at the top.