No advertising, commercial analytics, cross-site tracking, or public account is used. Your language, theme, text size, bookmarks, reading progress, and recently viewed lessons remain in your browser’s local storage (keys beginning “qll.”). They are never sent to a server.
Your local data
You can clear this saved information at any time with the “clear saved data” button in the page header, or with your browser’s site-data controls. Local data is not used to identify you and is not synchronized to a server.
Operational logs
The web server and API may retain short-lived operational logs (such as request path, status, and time) for security and reliability. They must not contain lesson drafts, reader profiles, or advertising identifiers.