Privacy Policy
Your privacy matters to us. Kvadratko is built with a privacy-first approach. We do not sell your data and we avoid unnecessary tracking.
Last updated: November 22, 2025
1. Controller
Service provider: Kvadratko. Contact: [email protected].
2. What we process
Guests: no account data is processed. Registered users: we process only data required to run the service, such as account email, ad content, and technical security metadata.
We do not sell personal data to third parties.
3. Cookies
We use only necessary cookies for authentication and platform security.
| Cookie | Purpose | Duration |
|---|---|---|
| .kvadratko.auth | User sign-in session | Session / remember-me |
| .AspNetCore.Antiforgery.* | CSRF protection | Session |
| .AspNetCore.Mvc.CookieTempDataProvider | Temporary UI messages (e.g. post-action notices) | Session |
| cf_clearance | Cloudflare anti-bot and DDoS protection | Up to 1 year |
4. Retention and your rights
Data is retained while your account is active or while ads are active, unless legal obligations require longer storage.
You may request access, correction, deletion, or objection by emailing [email protected].