Privacy notice

This notice applies to Chainle at playchainle.org.

Updated November 12, 2026.

Data in your browser

Your guesses, progress and preferences are stored in localStorage in this browser. IndexedDB may cache vocabulary and scoring assets. Clearing site data removes these saves. No account is required.

Anonymous scores and feedback

An HttpOnly anonymous cookie identifies your first daily score. The database stores the date, anonymous identifier, total and submission time. Feedback you choose to send includes a star rating and optional comment. Public comparisons require at least twelve completed first scores.

Requests and analytics

The server may process IP addresses and request metadata to operate the service and limit abuse. The production website is configured with a Google Tag Manager container to manage Google Analytics tags. Enabled tags may process page views, device and browser information, and use cookies; collection depends on the published container configuration. Our game code does not send guesses or feedback comments as analytics events.

Your controls and limits

You can block storage and still play, with reduced persistence. Clearing your cookie does not erase an anonymous total already recorded on the server, and progress does not sync across devices. Please do not put sensitive personal information in feedback.