Privacy policy
Data controller
What you type
Every calculation runs in your browser. What you type is never sent to us or to anyone else, and is not stored.
Hosting and server logs
This website is served by Cloudflare, Inc.. Serving it requires technical data, in particular your IP address, the date and time of the request, the page requested and your browser. The purpose is to deliver and protect the website; the legal basis is article 6(1)(f) GDPR (legitimate interest).
Data may be transferred to the United States. Cloudflare is certified under the EU-US Data Privacy Framework. Retention follows Cloudflare's privacy policy: https://www.cloudflare.com/privacypolicy/
Audience measurement
We use Cloudflare Web Analytics. It sets no cookies, stores nothing on your device and only reports anonymous statistics (for example, views per page).
Your rights
You have the right to access, correct and delete your data, to restrict or object to its processing and to data portability (GDPR articles 15 to 21). Write to us at the email address above.
You can lodge a complaint with the French data protection authority, the CNIL (www.cnil.fr).
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