By the Numbers Health

Privacy

Privacy notice

Short version: this site doesn’t collect anything about you.

What we collect

Nothing. This site has no cookies, no analytics or tracking scripts, no forms, no accounts and no email list. We don’t ask for your name, email or health information, and we don’t sell or share data, because we don’t have any.

Hosting

The site is hosted on Cloudflare. Like any web host, Cloudflare handles basic technical data, such as your IP address and browser type, to deliver pages and block attacks. That is covered by Cloudflare’s privacy policy. We don’t use it to identify or track you.

Amazon links

Links to the book on Amazon are paid links. As an Amazon Associate I earn from qualifying purchases. When you click one, you leave this site, and Amazon may set its own cookies under the Amazon Privacy Notice. The price you pay is the same.

Amazon developer tools

The author uses Amazon’s developer tools, including Login with Amazon and the Amazon Ads API, only to read reports about his own book advertising. No information about visitors or customers is collected through them.

Children

This site is written for adults and collects no information from anyone, including children.

Changes

If this ever changes, this page will be updated first. Last updated October 30, 2026.