Cookie Policy
Version 2.0Effective since September 25, 2026Document translated from English into 3 languages at launch: Portuguese, Spanish and English (G9-164); the version you accept at sign-up is recorded on your account.
1. What they are
Cookies are small files stored in your browser. Biblup also uses localStorage, a local browser storage, for preferences and for the progress of the demo Lesson before sign-up.
2. Cookies and storage we use
| Type | Name | Purpose | Duration |
|---|---|---|---|
| Necessary | session_token | Keep your session signed in | Session |
| Necessary | csrf_token | Protection against CSRF | Session |
| Necessary | consent_prefs | Store your consent choices | 1 year |
| Necessary | locale | Language chosen in the site selector (only for the root redirect) | 1 year |
| Functional | biblup-theme | Light or dark theme | localStorage |
| Functional | demo-progress | Progress of the demo Lesson before sign-up | localStorage · 30 days |
| Analytics | _ga, _ga_* | Google Analytics 4, only after consent | 2 years |
3. Your choices
On your first visit, the banner offers three options: Necessary only, Allow analytics (necessary + Google Analytics 4) and Choose by purpose. GA4 is loaded only after your consent. No marketing cookie or third-party advertising cookie is used.
4. Change it later
In Settings, under Privacy and consents, or with the "Cookies" link in the footer of any page. Changes take effect immediately.
5. localStorage
It stays only on your device and is never sent to third parties: theme, demo progress and the temporary state of a lesson in progress. Clearing the site data in the browser wipes all of this; the real progress of your account stays on the server.
Your choice
You haven't chosen yet. Until then, only the necessary cookies are in use.