A monitor analyzes and generates a profile of an Internet website data transmission. The profile indicates the relative load and/or execution times of different components of the data, including text, images, and Java code. The profile is displayed and an end-user deselects one or more of the data components which are of marginal interest but contributing to the webpage load or execution times, whereupon the altered profile is stored. During a next access of the website, the altered profile is retrieved and utilized to selectively control a more limited load and/or execution of subsequently transmitted website data by eliminating the previously de-selected data types. The load or execution times associated with pages of the website are thereby reduced. In one embodiment, the profile is pre-generated and stored with the website data and transmitted in the website data transmission for display and alteration.