Last updated: 14 April 2026
Cookie Policy
We use the absolute minimum number of cookies required to keep you signed in and the site secure. We do not use analytics cookies, tracking pixels, advertising cookies, or any third-party marketing scripts. Everything below is classified as strictly necessary under the ePrivacy Directive and does not require prior consent — we show a notice anyway because we believe you should know.
Cookies we set
| Name | Purpose | Duration |
|---|---|---|
| nb_session | Keeps you signed in across visits. HTTP-only, Secure, SameSite=Lax. | 30 days |
| nb_oauth_state | CSRF protection during Google OAuth sign-in. Cleared immediately after sign-in completes. | 10 minutes |
| nb_oauth_next | Remembers where to redirect you after sign-in. Cleared immediately after sign-in. | 10 minutes |
| nb_cookie_notice | Remembers that you have dismissed the cookie notice banner. | 1 year |
Third-party cookies on the checkout page
When you click Get NestBrain — $29 you are redirected to buy.polar.sh, operated by our payment provider Polar. Polar may set its own cookies on that domain to process your purchase. We have no control over those cookies — see Polar's privacy and cookie policy for details.
Similarly, when you click Continue with Google to sign in, Google may set cookies during the OAuth flow on its own domain (accounts.google.com). See Google's cookie policy.
What we don't do
- No Google Analytics, no Plausible, no Fathom, no PostHog
- No Facebook Pixel, LinkedIn Insight, or any other tracking pixels
- No session recording, no heatmaps, no behavior analytics
- No advertising cookies or retargeting
- No fingerprinting
How to remove them
You can delete cookies at any time through your browser settings. If you delete nb_session you will be signed out. For a full walkthrough, see the Firefox cookie guide or the equivalent instructions for your browser.
For more on how we handle personal data in general, see our Privacy Policy.