Cookie Notice

What we use, and what we don't. Last updated: 31 May 2026.

The short version

We use only strictly-necessary cookies and browser local storage so the site works. We do not use advertising cookies, tracking pixels, or third-party analytics that profile you.

What we use

Local storage on your own device — used by the marks qualifier so your subjects are still there after a page refresh. This data never leaves your device.
Session state — short-lived in-memory state to keep the quiz, navigation and forms working.

How to clear it

You can clear local storage at any time from your browser's site-data settings. The qualifier also has a "Reset" button that clears everything it has saved.

More information

See our Privacy Policy for the wider picture.