Cookie Policy
Last updated: April 26, 2026
This Cookie Policy explains what cookies and similar technologies Kostenx uses, why we use them, and how you can control them. For more information about how we handle your personal data generally, see our Privacy Policy.
1. What are cookies?
Cookies are small text files that a website stores on your device. They allow the site to remember your actions and preferences (like login state) over a period of time, so you don't have to keep re-entering them.
2. Cookies we use
2.1 Essential cookies (always on)
These cookies are strictly necessary for the Service to function. They cannot be turned off because the Service would not work without them.
| Name | Purpose | Duration |
|---|---|---|
next-auth.session-token | Keeps you signed in to your account | 30 days |
next-auth.csrf-token | Prevents cross-site request forgery | Session |
ma_session | Master admin session (only on admin routes) | Session |
kostenx-cookie-consent | Remembers your consent choice for this banner | 1 year |
2.2 Analytics cookies (optional, only with consent)
We do not currently set any analytics cookies. When we add analytics in the future, we will only do so with your explicit consent (“Accept all” in the consent banner). The list below describes what we plan to add — it will be updated when these are live.
| Name (planned) | Purpose | Duration |
|---|---|---|
| To be added | Anonymized usage analytics (page views, performance) | — |
3. Third-party cookies
Stripe sets its own cookies on payment pages to detect fraud. These are governed by Stripe's Privacy Policy.
4. How to control cookies
- Use the “Essential only” or “Accept all” buttons in our consent banner.
- Clear the value of
kostenx-cookie-consentin your browser's local storage to see the banner again and change your choice. - Configure your browser to block or delete cookies entirely. Note that disabling essential cookies will prevent you from staying logged in.
5. Changes
If we add or change the cookies we use, we will update this page and, for material changes, notify you in the consent banner.
6. Contact
Questions? Email privacy@kostenx.com.