You can use your name and password to access your progress from every.
Du kannst deinen Namen und das Passwort verwenden, um auf deinen Spielstand von überall zuzugreifen.
Your progress is stored into a local Cookie. Make sure you don't clear Cookies on browser-close, otherwise your game progress is lost.
The ranking is still stored on the server, which allow you to compare your results again other players.
No informations are stored, that means you will loose your game state while leaving this game. Additionally no ranking information are stored.