Cookies and preferences
Last updated: 12 April 2026
This site uses cookies and similar technologies. This page describes the categories used, their purposes and how you can express your choice, in line with French law and the GDPR.
See also our privacy policy.
1. What is a cookie?
A cookie is a small file stored on your device when you visit a website. It can remember browsing information or preferences.
2. Strictly necessary cookies
These cookies are required for the site to work (for example language preference or storing your cookie choice). Where they are strictly necessary to provide the service you request, they do not require prior consent under applicable rules.
3. Audience measurement (Google Analytics 4)
If you agree via the cookie banner, we use Google Analytics 4 (provided by Google Ireland Limited / Google LLC) to understand how the site is used (aggregated views, paths, interactions) and to improve content and usability.
Data may include technical information (IP address may be truncated or anonymised depending on Google settings), device type, browser, navigation events. Processing is based on your consent where required (Article 6(1)(a) GDPR). If you decline analytics cookies, Google Analytics is not loaded in your browser.
See Google’s privacy policy: https://policies.google.com/privacy and Google Analytics terms: https://marketingplatform.google.com/about/analytics/terms/us/.
4. Retention
Your choice stored via the banner is kept locally in your browser for up to thirteen (13) months, in line with CNIL guidance. Cookies set by Google Analytics follow Google’s retention settings (often up to 24 months for some analytics cookies, depending on configuration).
5. Managing your preferences
On your first visit (or after you reset your choice), a banner lets you accept or decline audience measurement cookies. You can change your mind anytime using the “Manage cookie preferences” link in the footer or the button on this page, which clears the stored choice so you can decide again.
You can also configure your browser to block or delete cookies. Declining analytics cookies does not prevent you from using the site.
6. Contact
Questions about cookies or personal data: contact@kevinboutillier.com. For more on your rights, see our privacy policy.