The blank file Content://Cz.Mobilesoft.Appblock.Fileprovider/Cache/Blank.Html helps performance by reducing the app’s workload. Rather than load in a heavy web page or error page, the app simply loads this blank file so quickly. This serves to translate to less consumption of memory, quicker responses, and reduced battery discharge. It does not contain distracting material that it shows to the user. It simply just put the blank.html as a lean tool to the app. In simple terms, it will make AppBlock faster, smoother, and more efficient as it carries out its blocking duties.