Cookie Policy
Last updated: 27 March 2026
1. What are cookies?
Cookies are small text files stored on your device by your web browser. They are used to remember your session and preferences.
2. Cookies we use
Asermu uses only strictly necessary cookies. We do not use any analytics, advertising, or tracking cookies. Our analytics service (Umami Cloud) is fully cookieless and does not track individual users.
| Cookie | Purpose | Type | Duration |
|---|---|---|---|
next-auth.session-token | Maintains your authenticated session so you stay logged in | Strictly necessary | Session / 30 days |
__Secure-next-auth.session-token | HTTPS-only variant of the session token (used on secure connections) | Strictly necessary | Session / 30 days |
next-auth.csrf-token | Protects against cross-site request forgery attacks | Strictly necessary | Session |
next-auth.callback-url | Stores the redirect URL during OAuth sign-in | Strictly necessary | Session |
sidebar_state | Remembers your sidebar open/closed preference | Functional | 7 days |
3. Local storage
In addition to cookies, Asermu uses browser local storage and IndexedDB for:
- Theme preference — remembers your light/dark mode choice (localStorage)
- Cookie notice dismissal — remembers that you have seen the cookie notice (localStorage)
- Language preference — remembers your selected language (localStorage)
- Sidebar state — remembers whether you have interacted with the sidebar (localStorage)
- Creative content — all your manuscripts, characters, locations, and other project data (IndexedDB). This is the core offline-first data store and never leaves your device unless you opt into cloud backup.
4. Third-party cookies
Asermu does not set any third-party cookies. When you use Stripe for payment, Stripe may set its own cookies on their checkout page — see Stripe's Privacy Policy for details.
5. Managing cookies
Since all our cookies are strictly necessary for the service to function, disabling them will prevent you from logging in. You can manage cookies through your browser settings:
6. Contact
Questions about our use of cookies? Contact us at [email protected].