Typically web pages are classified as static or dynamic:

• Static pages don’t change content and layout with every request unless a human (web master/programmers) manually updates the page. A simple HTML page is an example of static content.
• Dynamic pages adapt their content and/or appearance depending on end-user’s input/interaction or changes in the computing environment (user, time, database modifications, etc.) Content can be changed on the client side (end-user's computer) by using client-side scripting languages, to alter DOM elements (DHTML). Dynamic content is often compiled on the server utilizing server-side scripting languages . Both approaches are usually used in complex applications.