Cookie Settings

This website does not use cookies. For more information, see the Privacy Policy.

What this site stores

This website uses browser localStorage to remember your theme preference, your learning progress (chapters, quiz results, badges, start and completion time), your certificate name and a few display settings. This data stays in your browser and cannot be accessed by any other website.

Two features reach the server: a small anonymous activity heartbeat once you have unlocked your first badge (see below), and the optional leaderboard if you choose to publish a nickname and your score. Connecting a wallet on the Wallet page also sends its addresses through this site to the Koios API. See Privacy Policy §5 to §7 for the full breakdown.

Analytics

This website uses Cloudflare Web Analytics, a privacy-friendly, cookie-free analytics tool. It collects only aggregated usage data (page views, referrer, browser, country) and does not track individual visitors or use cookies. More details in the Privacy Policy.

Anonymous activity heartbeat

Once you have unlocked at least one badge, your browser sends a small anonymous ping to the server at most once every twelve hours. This lets the leaderboard page show how many learners are progressing through the journey without having joined yet. The only data sent is a random browser-local UUID. The server stores it with the time of the last ping and deletes it in the first daily cleanup after 30 days without a ping. See Privacy Policy §6 for details.

Clears everything this site stored in your browser. Your choice about activity pings is kept. Data on the server is not affected by this button.