Dynamic web pages are those where the information that's presented is generated from a request that's been made on the page. Contrary to what happens with static pages, in which their content is predetermined, in dynamic pages, the information appears immediately after a request is made by the user. The result of the page that's obtained in the answer will depend on several aspects, such as the information that's stored in the database, the content of a cookie or session, and the parameters in the HTTP request.