Without signing in, your learning plan and answers stay in your browser. Clearing browser storage removes this local progress.
Google sign-in is optional. Google provides your account identifier, email and basic profile to authenticate you. Your learning plan and answer history are then stored in your own Harf Check account in a dedicated Supabase database hosted on Hetzner in Germany. Offline answers are cached on your device and synchronized when you reconnect. Signing out leaves your account cache on this device so pending answers can sync when you sign in again. On a shared device, clear website data after signing out.
DataFast measures aggregate visits with its cookieless script. It does not use tracking cookies; visitor identifiers rotate approximately daily. We do not send your Google identity or learning answers to DataFast. Cloudflare and Hetzner deliver and secure the website and may process connection data. Authentication uses local browser storage to keep you signed in.
For questions or account deletion, contact tuemerkan on X.
Ohne Anmeldung bleiben Antworten lokal. Nach freiwilliger Google-Anmeldung werden sie in deinem Konto gespeichert. DataFast misst Besuche ohne Tracking-Cookies; deine Antworten und Google-Identität werden nicht an DataFast übermittelt. Für Fragen oder Kontolöschung: tuemerkan auf X.
Giriş yapmadan cevapların bu cihazda kalır. İsteğe bağlı Google girişiyle hesabına kaydedilir. DataFast ziyaretleri çerezsiz ölçer; cevapların ve Google kimliğin DataFast’e gönderilmez. Sorular ve hesap silme için: X’te tuemerkan.