Cookie and Local Storage Policy
What we store in your browser and why.
Last updated: September 20, 2026
Versión en español: Política de cookies y almacenamiento local.
1. First-party cookies
| Cookie | Purpose | Duration |
|---|---|---|
| session (better-auth) | Keep you signed in and protect access to your account. | For the length of the session. |
| zv_lang | Remember the language selected on that device. | Up to 1 year. |
| zv-theme | Remember your light, dark, or system theme. | Up to 1 year. |
| zv_pills_seen | Rotate the paid suggestions shown to you so the same ones don't keep repeating. First-party; stores only public listing ids. | Up to 1 day. |
| zv_ref | Remember the referral code you arrived with, to credit it when you complete your account. | Up to 30 days. |
2. Local and session storage
| Key | Purpose | Duration |
|---|---|---|
| zv:viewed (localStorage) | Store up to 20 viewed listings in your own browser, for local recommendations and deduplication. | Until you clear it. |
| zv-suggestions-off (localStorage) | Remember that you asked us not to show the optional suggestion box again. | Until site storage is cleared. |
| zv-assistant-turns / zv-assistant-last (sessionStorage) | Remember your conversation with the assistant while you use it. | Cleared after 1 hour idle or when you select "Close chat". |
| zv-brand-sound (sessionStorage) | Remember whether you turned sound on for brand videos. | For the browser session. |
3. Analytics and third-party advertising
ZonaVenta does not use third-party advertising or analytics cookies. Link parameters such as UTM values or referrer data are not cookies, but may be recorded on our server when you visit or contact a listing, to measure where traffic came from.
Listing visits. When you view a listing for at least 2 seconds, we add one visit to the statistics its seller sees. To avoid counting the same person twice we use your network address temporarily (26 hours at most) in a server counter; it is not stored in any profile, not linked to your account and not shared. Bots, link previews and sellers viewing their own listing are not counted. Sellers only see totals, never who visited.
4. How to control or delete browser storage
You can delete cookies and local storage through your browser settings. Doing so may sign you out, reset language or theme, erase local viewed-listing history, and cause dismissed preferences to appear again. Server-side suppression records — such as a WhatsApp recommendation opt-out — are not removed merely by deleting browser cookies.
5. Relationship to the Privacy Policy
For information about data processed outside your browser, its purposes, retention, and your controls, see the Privacy Policy.