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Privacy policy

Last updated: November 15, 2026

Who is responsible. The data controller for this site is Marco Gerini, Bibbiena (AR), Italy, email [email protected].

What we collect.

  • Usage statistics. We use Cloudflare Web Analytics, which counts visits without cookies and without tracking you across sites.
  • Session recordings and heatmaps. We use Microsoft Clarity to understand how pages are used (clicks, scrolling). Clarity uses cookies; for visitors in the EU/EEA and UK it runs only after you accept it in the cookie banner. You can change your choice at any time from the "Cookie settings" link in the footer.
  • Emails you send us. If you write to us, we keep your message and email address to reply and to fix the data you report.
  • Server logs. Our host, Cloudflare, processes technical data such as IP addresses to deliver and protect the site.

The calculator runs in your browser: the state and options you pick are not sent to us.

Why (legal bases, for EU/UK visitors). Statistics without cookies and security logs: our legitimate interest in running a working, secure site. Clarity: your consent. Emails: to answer your request.

Who receives the data. Cloudflare, Inc. (hosting, security, analytics) and Microsoft Corporation (Clarity). Both may process data in the United States under the EU-US Data Privacy Framework or standard contractual clauses.

Affiliate links. When you click an affiliate link and leave our site, the partner's own privacy policy applies, and the partner may use a cookie to credit the referral to us.

How long we keep it. Clarity data: up to 13 months (Clarity's standard). Emails: up to 24 months after the last exchange.

Your rights. You can ask to access, correct or delete your data, object to its use or withdraw consent, by writing to [email protected]. EU visitors can also complain to their data protection authority (in Italy, the Garante per la protezione dei dati personali). California residents: we do not sell or share personal information as defined by the CCPA/CPRA.

Children. The site is not meant for people under 16.

Changes. We will post any change on this page with a new date.