Privacy

• There are no accounts. Requesting a certificate asks for your name and email so we can deliver the PDF.
• Quiz answers are graded in your browser and are not sent anywhere.
• The name and email you enter for a certificate are sent so we can draw the PDF and email you a copy. Quiz answers are not included.
• Passed levels and certificate IDs are saved in your browser's local storage under the key gcff:passes:v1. Clear your site data to remove them.
• The site does not use analytics or advertising scripts today. The web host (GitHub Pages) may keep standard server logs such as IP addresses for security.

Last updated November 12, 2026.