Cookie Policy
This Cookie Policy explains what browser cookies are, which ones SINK uses today, and how you can manage them.
1. Introduction
Cookies are small text files that a website stores in your browser so core features can work across requests. SINK uses only the minimum cookie footprint needed for authentication, and uses browser storage separately for some player and interface preferences.
2. Strictly necessary cookies
SINK uses an authentication session cookie provided by Auth.js (NextAuth). This cookie is strictly necessary for sign-in, account security, and keeping your authenticated session available between page loads. You cannot disable this cookie and still use sign-in-protected parts of the service.
| Cookie name | Purpose | Duration | First or third party |
|---|---|---|---|
| sink_cookie_consent | Stores your cookie consent preference for analytics cookies. | 1 year | First-party |
| authjs.session-token or __Secure-authjs.session-token | Keeps you signed in to your SINK account and protects authenticated requests. | Up to 30 days, with renewal while your session remains active. | First-party |
| _ga | Distinguishes returning visitors for Google Analytics 4 aggregate usage reporting after consent is granted. | 2 years | |
| _ga_XXXX | Persists session and campaign state for a specific Google Analytics 4 property after consent is granted. | 2 years |
3. Analytics Cookies
Google Analytics 4 loads only after you explicitly accept analytics cookies. Before consent, Google Consent Mode keeps analytics and advertising storage denied and GA4 cookies are not set on your device.
To change this choice, use Cookie Preferences.
4. No advertising or tracking cookies
SINK does not use advertising cookies, behavioural tracking cookies, remarketing tags, or third-party analytics cookies. We do not sell or profile listeners through cookie-based ad technology.
5. How to manage cookies
Most browsers let you inspect, block, or delete cookies in their privacy or security settings. If you clear or block the SINK session cookie, you may be signed out and need to sign in again.
6. Contact
If you have questions about this Cookie Policy, contact hello@sink.fm.
7. Last updated
Last updated: May 7, 2026