( Dynamic Server Pages) A web site in which part of the content is generated by server-side code working with a backend database server. Dynamic pages do not exist as files on the server, as a static HTML page does, until the request comes for a page. The request contains parameters, user identity, date and time, context, etc. that are used to create a custom HTML page for those specific parameters. Server-side code tools include Microsoft Active Server Pages, Sun Java Server Pages, PHP, and Perl.