Last updated: October 26, 2026
Operator: DusterBook (“we”, “us”)
Contact: hello@dusterbook.com
This cookie policy explains how DusterBook uses cookies and similar technologies on dusterbook.com and the authenticated application. It should be read together with our privacy policy.
What cookies are
Cookies are small text files stored on your browser or device. We also refer to local storage and session storage used for similar purposes (keeping you signed in, remembering banner choices).
Essential cookies
We use strictly necessary cookies and storage for:
- Authentication sessions — keeping you signed in to the app after login (email/password or Google sign-in).
- Security — CSRF tokens, OAuth state parameters, and session integrity.
- Load balancing — infrastructure cookies from our hosting provider when required for stable connections.
These cookies do not require consent under many laws because the service cannot function without them. You can block them in browser settings, but parts of DusterBook will break (you will not stay logged in).
Optional analytics
If the operator enables privacy-friendly analytics via environment configuration and you accept the cookie banner on the marketing site, we may set analytics cookies or use cookieless measurement techniques that still respect your choice.
If analytics is disabled or you decline, we do not load optional analytics scripts. Marketing pages may still record standard server access logs (IP address, user agent, requested URL) for security and reliability.
Third-party cookies
Google OAuth — If you choose “Sign in with Google”, Google may set cookies under Google’s policies. We receive profile information needed to create or link your account.
Polar — Subscription checkout and the customer billing portal may set cookies controlled by Polar when you manage payment methods. We do not control Polar’s cookie names or durations.
We do not use advertising networks or cross-site tracking pixels on the product surface.
Cookie duration
Session cookies expire when you close the browser or log out. Persistent session cookies for “remember me” style login follow the session configuration of our auth library. Analytics cookies, when used, typically expire within 13 months or sooner per vendor defaults.
How to control cookies
Use browser settings to block or delete cookies. Our in-app cookie banner (when shown) records accept/decline for optional analytics. Declining optional cookies does not affect essential login cookies.
Do Not Track
We do not respond to DNT signals in a standardized way today; essential cookies still apply for signed-in users.
Children
DusterBook is business software not directed at children. We do not knowingly place cookies to profile child consumers.
Changes
We may update this policy when we add features (for example new payment flows). Material changes will be reflected in the “Last updated” date.
Contact
Questions about cookies: hello@dusterbook.com or the contact form.