The request made to the domain host by a user's browser for an HTML document. The receipt and rendering of an HTML document by a user's browser. The user-side result of a page request to a web server. Search Engine A type of software that scans the contents of text documents or system files on a computer looking for specific words or phrases called keywords. Since the web server only responds to a user at the time the user makes a page request, and users can view web content repeatedly from their local browser cache.
Session is, therefore, an arbitrary and imprecise way to define web user behaviour.
Traffic A measure of the volume of electronic files distributed to the volume of individual visitors to a web site. Traffic is measured in terms of hits, page views, sessions or unique users. The number of different individuals who visit a web site within a specified period of time.