Cookie policy

Last updated: November 5, 2026.

A cookie is a small file stored on your device when you visit a website. Some are essential for the site to work, others are used to measure audience or to provide a third-party service.

Cookie or service Issuer Purpose Duration
_pk_id and _pk_ses Matomo, hosted on arcora.com Audience measurement: pages viewed, origin, device. No cross-referencing with other sites. 13 months / 30 minutes
reCAPTCHA (cookies and connections to Google) Google To protect the contact form against automated submissions. Loaded only on the Contact page. According to Google
3D model (Sketchfab) Sketchfab Display of a 3D model on some articles. Loaded only if you click “Show the 3D model”. According to Sketchfab

The site uses no advertising cookies and does not track visitors from one site to another.

Matomo audience measurement is configured in line with the CNIL’s recommendations: its sole purpose is anonymous statistics about site traffic, IP addresses are anonymised, data is neither cross-referenced with other processing nor sent to third parties, cookies are kept for 13 months at most and data for 25 months at most. It therefore does not require your consent. You can nevertheless object to it at any time:

You can delete or block cookies at any time in your browser settings (Chrome, Firefox, Safari, Edge: “Privacy” or “Cookies” section). Refusing some cookies may limit certain features of the site.

See our privacy policy and the CNIL website: cnil.fr/cookies.