Privacy

What is stored. When you sign in, the site stores your email address, your track (core or advanced) and when it was granted. For a redeemed access code it also stores a hash of the code (never the code itself). A log of redeem attempts keeps the email, IP address and a hash of the browser’s user agent.

Why. To show you the material of your track, and to know how many people use the course. Your email is not sold, shared or used for newsletters you did not ask for.

Where. In a Cloudflare D1 database of this site. Signing in itself is done by Cloudflare Access (a one-time code to your email, Google, or GitHub), which keeps its own sign-in logs. If you choose Google or GitHub, that service tells Cloudflare your email address and name; this site keeps only the email.

Deletion. Ask through the contact form and your data is removed.