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.