Cookies

We use a minimal set of cookies and local storage to make the site work.

Strictly necessary

Language preference and optional test-progress storage (localStorage).

Analytics cookies

Vercel Analytics provides cookie-less page counts on eligible pages. If you allow analytics, Google Analytics 4 may use _ga cookies to measure page views and anonymous test steps. Google Analytics stays off until you choose Allow analytics. Your choice is saved as tpt:analytics-consent:v1 in localStorage. Open Analytics preferences to reject or withdraw consent; withdrawal removes Google Analytics cookies. Private report and Birth Pattern flows remain excluded.