Privacy
This is a static site. Your study record stays on this device.
What is stored
Lesson checkmarks, theme (light or dark), and a locale-banner dismissal live in localStorage. They never leave the browser. Clearing site data forgets them. There is no login.
What is not collected
No advertising, no accounts, and no third-party fonts. Contact mail is hello@esperantogo.com if you write to us; that is ordinary email, not a mailing list.
Analytics
Google Analytics (measurement ID G-7J3VM0E4DM) records page views so we can see which lessons and dictionary pages are used. Google receives the page URL, approximate location, and device type. Lesson checkmarks and your theme stay in localStorage and are not sent with that count.