A tracker (a cookie or the browser's local storage) is a piece of information stored on your device when you visit the Site. This policy describes the ones we use, in accordance with Article 82 of the French Data Protection Act (loi Informatique et Libertés) and the guidelines of the CNIL (the French data protection authority).
4.1 Strictly necessary trackers
They are essential for the Site to work, or reflect a choice you have made. They do not require your consent:
- keeping your session open and securing your login;
- remembering your display preferences (light or dark theme, collapsed menu, language);
- temporarily keeping an invitation code while you log in, or a first working session in progress until your account is created.
4.2 Audience measurement
The marcel-os.com website measures its traffic with a tool developed by OGIRY and hosted with the Site, in order to know which pages are viewed and to improve its content. It records anonymous events — a page view, a click on a link or button, a form submission — with the page concerned, the source of the visit (the site you came from, or the campaign), the type of device (phone, tablet or computer) and the country.
It sets no cookies and records neither your IP address nor any identifier: it cannot recognise you from one visit to the next, nor follow you on other sites. Only the source of your visit is kept in your browser's session storage, which is cleared when you close the tab. The data is neither cross-referenced nor passed on to third parties, and is kept for a maximum of thirteen (13) months.
This tool meets the exemption conditions set by the CNIL (purpose strictly limited to audience measurement, anonymous data, no cross-referencing): it runs without your consent, but you can object to it at any time (see 4.4).
Google Analytics, with your consent. If you accept, the site also uses Google Analytics, a service of Google Ireland Limited, to better understand its traffic and where visits come from. It only loads after you consent. It sets the _ga and _ga_SV3KLK97DB cookies, kept for no more than thirteen (13) months, and sends Google the pages viewed, your interactions with the site, and information about your device and approximate location. This data may be transferred to the United States (see the Privacy Policy, 3.6). It is not used to show you advertising. In Google Analytics, event data is kept for two (2) months and user data for fourteen (14) months.
The Marcel OS application (app.marcel-os.com) uses no audience measurement or advertising trackers.
4.3 Third-party services
Links to third-party services (instant messaging, appointment booking, social networks) take you to their sites, which apply their own policies.
4.4 Managing your choices
Google Analytics is the only tracker on the Site that requires your consent. A banner asks for it on your first visit; declining changes nothing about your browsing. Your choice is kept for six (6) months in your browser's local storage, then you are asked again. You can change it at any time below: if you withdraw your consent, the Google Analytics cookies are deleted. It also does not load if your browser sends the “Do Not Track” or “Global Privacy Control” signal.
Google Analytics: no choice made yet in this browser.
You can object to the audience measurement made by our own tool below. Your choice is kept in your browser's local storage, for this site only, and you can change it at any time. Measurement is also disabled when your browser sends the “Do Not Track” or “Global Privacy Control” signal.
Audience measurement: active in this browser.
You can also set your browser to block trackers; some features may then no longer be available.
Marcel OS — Version 1.3 of 4 November 2026 — OGIRY, RCS Lyon 978 960 672
