Methods and systems of displaying response data provide for identifying a pegged area of display content during a first retrieval of the display content by a client device at a first moment in time. Additionally, first data associated with the pegged area may be stored, wherein a comparison can be conducted between the first data and additional data associated with the pegged area at one or more subsequent moments in time. In one example, a user interface is generated that highlights a quantitative trend of the pegged area between the first moment in time and the one or more subsequent moments in time.