This Cookie Policy explains how Notion Of. (“we”, “us”) uses cookies and similar technologies on the website https://mastros.fr.

It complies with the General Data Protection Regulation (GDPR) and the recommendations of the French data protection authority (CNIL).

1. What Are Cookies?

Cookies are small text files stored on your device when you visit a website.

It is used to ensure the proper functioning of the site, measure its audience, or improve your user experience.

2. Cookies We Use

a. Strictly Necessary Cookies (no consent required)

These cookies are essential for the website to function. They enable:

• user authentication and session management (Supabase Auth)
• security
• storing your cookie consent preferences

Without these cookies, the website cannot function properly.

b. Analytics Cookies (consent required)

These cookies help us understand how visitors use the site in order to improve performance and experience.

Tool used: Vercel Analytics (cookieless audience measurement, exempt from consent under CNIL guidelines).

c. Marketing / Advertising Cookies (consent required)

These cookies are used to measure the effectiveness of campaigns or to display targeted advertising.

No marketing cookies are currently used on the site.

No non-essential cookies are set without your prior consent.

3. Cookie Consent

On your first visit, a consent banner is displayed allowing you to:

• accept all cookies
• customise your choices by category
• continue without accepting (refuse non-essential cookies)

You can change your preferences at any time by clicking "Cookie Policy" in the website footer.

Your consent is stored for a maximum of 6 months, in accordance with CNIL recommendations.

4. Managing Cookies

You can at any time:

• configure your browser to block cookies
• delete existing cookies
• or limit their placement

Here is how to proceed depending on your browser:

• Chrome: chrome://settings/cookies
• Firefox: about:preferences#privacy
• Safari: Preferences > Privacy
• Edge: edge://settings/privacy

Refusing strictly necessary cookies may prevent certain features of the site from functioning properly.

5. Retention Period

• Strictly necessary cookies: duration of the session or a few hours
• Analytics cookies: not applicable (Vercel Analytics is cookieless)
• Marketing cookies: not applicable (no marketing cookies active)
• Consent record: 6 months

6. Third-Party Cookies

The following third-party services are integrated into the site and may interact with your browser:

• Supabase (authentication)
• Stripe (payment, only on transaction pages)
• Google (OAuth authentication)

We recommend consulting the privacy policies of these providers for further information.

7. Changes to This Policy

We may update this Cookie Policy as the site evolves or as required by law.

Any significant changes will be communicated on the site.

8. Contact

For any questions regarding the use of cookies or the protection of your personal data:

Email: privacy@mastros.fr

Address: 77 avenue des Gobelins, 75013 Paris, France