Privacy
Short version: there is very little going on here. No accounts, no cookies, no ads, and nothing personal about you.
What stays on your device
Your score (answered, correct, accuracy, streaks) and your light or dark preference are all saved in your browser's localStorage. They never leave your device and they never reach us. If you clear your browser storage, they are gone for good.
What analytics are being used?
We use Ahrefs Web Analytics, which is cookieless. For each page view it records the page address and title, the site you arrived from, your browser language, your screen size and pixel density, and which links get clicked. That is the whole list.
The quiz all happens on one page, so none of it is visible to analytics. Your answers, your score, and how far you get are never sent anywhere.
No cookies are set, no profile is built, and you are not followed around other sites. Nothing collected is used to identify you. Ahrefs states that it does not store IP addresses.
Server logs
The site is served by Cloudflare, which handles incoming requests the way any web host does. We do not run a backend, a database, or a mailing list, so there is nowhere for your data to pile up even if we wanted it. Which we don't.
Questions?
This whole quiz is open source, so you can check any of this yourself. Have a poke around the quiz code on GitHub (opens in a new tab), or come and say hello at davedavies.dev (opens in a new tab).