Last updated 2026-10-03. This policy covers tools.linkfa.de, run by DaveBukar Technologies.
What you type into a calculator
Every calculation runs in your browser. The numbers and choices you enter are never sent to us or stored on our servers.
Server logs
Like any website, our web server receives the standard request information your browser sends (IP address, browser type, the page requested and the time). We use it only to keep the site running and secure, and do not combine it with other data.
Cookies and advertising
This site does not currently use cookies, analytics or advertising. If we add advertising (such as Google AdSense) this section will be updated before it starts, to explain the cookies involved and how to opt out.
Links to other sites
Pages link to the official sources behind each calculation. Those sites have their own privacy policies.
Your rights and contact
Under UK and EU data protection law you can ask what personal data we hold about you and ask us to delete it. To do so, use the contact form on linkfa.de.