Privacy

Last updated: 30 October 2026.

Who runs this site

Rolzs Performance. Contact: info@keepclose.eu. Write to this address with any privacy question or request.

What the calculator does with your inputs

All calculations run in your browser. The values you enter are not sent to us or to anyone else.

What is stored on your device

Your last inputs are saved in your browser's local storage so they are still there when you come back. You can clear them with the Reset button or by clearing your browser's site data. This is not a tracking cookie and is never sent to a server.

Shared links

When you use "Copy link", your inputs are encoded in the link itself. Anyone you give the link to can see those inputs.

Hosting

The site is hosted by Netlify, which processes technical request data (such as IP address and browser type) to deliver the pages and keep them secure.

No ads or analytics yet

This site currently uses no advertising and no analytics tools. If that changes, this page will be updated and you will be asked for consent where the law requires it.