Privacy

Nothing loads from other companies, and ketones.fyi sets no cookies either. Ads do not appear on the site, third-party analytics are not used and outside fonts are not loaded.

What gets counted

A small script counts page views, how long you stay on a page, tool use, plus clicks on outside links. Those numbers go only to ketones.fyi. The readings and numbers you type do not get sent.

What remains in your browser

The reading checker keeps the test you used most recently (blood, urine or breath) under the name w06.prefs, in your browser's local storage. If you clear site data, it is gone.

Logs on the server

For security and counting, the host stores standard request logs, which list the address, page, time and browser.

Contact

For questions about your data, write to contact@ketones.fyi.