Visitor counting: the website counts visits with its own simple tool that uses no cookies and stores nothing in your browser. Only daily totals are stored (page views, referring domains, device type). The number of unique visitors is estimated from a fingerprint that changes daily and is deleted when the day ends, so you cannot be recognised across days. Nothing is sent if Do Not Track or Global Privacy Control is on.
Summary
The website requires no registration or login. It sends no data to third parties when a page loads and uses no analytics or advertising tools.
Data entered into the calculator
Height, weight, age, sex, body fat, lean mass and anything else you enter into the calculator is processed only in your browser. It is not sent to the server, not stored and cannot be linked to you. It disappears when you close or reload the page.
Data stored on your device
The website stores a single value in your browser storage (localStorage): your chosen text size (A, A+, A++). It contains no personal data. You can delete it at any time in your browser settings.
Data processed by the server
On every visit the web server routinely records technical data (IP address, time, requested address, browser type) in the hosting provider's operating logs. This serves security and operation of the website and is kept for the period set by the hosting provider. The exact period is stated in the hosting terms.
Controller
The controller is the operator named on the Website operator page. Contact: info [at] moderni-lecba-obezity dot cz.
Your rights
You have the right of access, rectification, erasure, restriction of processing and the right to lodge a complaint with a supervisory authority. Because the website does not store data that would identify you, these rights mostly concern any email correspondence. In the Czech Republic this is the Office for Personal Data Protection (Úřad pro ochranu osobních údajů, uoou.gov.cz); in Slovakia the Úrad na ochranu osobných údajov SR.
Email correspondence
If you write to us, we process your email and its content only to reply and delete them once resolved, unless the law requires otherwise. We keep them for at most 1 year after the last contact.