Cookie Policy
Last updated: 12 June 2026
What we use
This site uses only cookies and local storage strictly necessary for it to work. We use no advertising cookies and no third-party marketing trackers.
Essential cookies
Session and authentication cookies (set by our Supabase platform): they keep you securely signed in to your account. Without them, the dashboard and admin area cannot work. Duration: the session, with automatic renewal.
Local storage (on your device)
We store on your device, and only on your device: your registration draft ("cim_reg_draft", so an interrupted form can resume; expires after 24 hours), your share-card details ("cim_share", name and races, used to generate your "I’m in!" visual), and your language preference. This data is not sent to us through this mechanism and is not used for ad tracking.
Providers
At checkout, our payment providers may set their own technical cookies on their payment pages, governed by their own policies. Our hosting (Vercel) may collect anonymous technical logs necessary for security and operation.
Managing cookies
You can clear cookies and local storage in your browser settings. Note that deleting essential cookies will sign you out, and clearing local storage will erase any saved registration draft.
Changes and contact
If we ever add audience-measurement tools, this page will be updated before they are enabled. See also the Privacy Policy. Contact: info@cotonoumarathon.com.