Home / Privacy policy

What you type into the tools

Numbers and dates you enter are calculated only inside your own browser. They are not sent to the operator or to any other server.

Cookies and analytics

This site does not set cookies.

The site is delivered through the services of Cloudflare, Inc. For delivery, records of each visit, such as the IP address (access logs), may be kept by Cloudflare.

To see how the site is used, we use Cloudflare Web Analytics. It counts things such as which pages are viewed, which site a visitor came from, the country, the type of browser and device, and how fast pages load. Cloudflare states that this service does not store cookies or localStorage in your browser and does not track individuals by IP address or similar data. The operator of this site does not identify individual visitors.

In the future we may use cookies or other analytics services, or show advertising. If we do, we will first update this page to say what is used and why, who receives the information, and how to turn it off.

Messages you send us

If you contact us, we use your name, email address and message only to reply and to improve the site. We do not give them to third parties without your consent, except where the law requires.

Links to other sites

This site links to outside sources. How those sites handle information follows their own policies.

Changes

We may change this policy when needed. When we do, we will update the date on this page.

Last updated: 2026-10-03