In a computing device executing a master tag embedded in a webpage, identifying a first subsequent tag in the webpage; identifying a second subsequent tag called by the first subsequent tag; identifying information collected by one or more of the first and second subsequent tag; identifying the location of the tag(s) embedded on the webpage in relation to the portion of the webpage currently in view by the party interacting with the webpage; controlling the order of the firing of tags in accordance with rules determined by the user for purposes of increasing the viewability of advertising and other related content; and automatic modification of the order of the firing of tags based on actions taken by the visitor to the webpage.