Cookies and local storage
This site sets no cookies. It uses local storage in your browser to remember your progress and a few preferences, and that information never leaves your device.
01No cookies
Moto Zero does not set any cookies, first-party or third-party. There are no analytics, advertising or social media cookies.
02What local storage is used for
Local storage is a small store inside your browser that a website can read and write on your device. The site uses these keys:
| Key | Set by | What it holds |
|---|---|---|
mz-progress-v1 | Learn, Quiz and the tools | Chapters you opened and marked as done (with dates), your answers to in-chapter checks, best and last quiz scores per module and level, and which tools you used. |
sb-…-auth-token | Account (only if you sign in) | Keeps you signed in. Removed when you sign out. |
mz-circuit-builder-v1 | Circuit Builder | Your circuit and readings log, so they are there next time. |
mz-best | Quiz | Your best score per quiz topic. |
mz-sound | Cockpit | Whether the engine sound is on or off. |
mz-build | Bike builder | Your fastest time for each bike and level. |
The data is plain text that only pages from this site, in this browser, can read. It is not sent with requests to the server.
04How to clear it
- Use Reset progress on the My progress page to clear your learning progress.
- To remove every key, clear the site data for this website in your browser settings.
- Before clearing, you can use Export progress to keep a copy and import it later or on another device.
05Questions
Write to marcel@transitionslab.org. See also the privacy policy.
Last updated 1 November 2026.