The web browser generates a random string to identify the viewer during the browser session and periodically notifies the server that a user is watching the video. By default, a view is counted after 10 seconds of viewing (or 50% of the video duration if the duration is less than 10 seconds). Las visualizaciones se guardan en un bfer, as que no te alarmes si el contador de visualizaciones sigue igual despus de haber visto un vdeo.