A dynamic site is a type of website that use a server-side programming and database to generate its content
IN simple language we understand dynamic site by the following points
we check there in the site any user interaction activities are held or not in site there are user interaction are held we say that`s types of site are dynamic website or application
in dynamic site there are servers database are used for store user data
for example Instagram ,facebook , youtube ,hashcode and Snapchat etc are dynamic site
dynamic web pages have Web scripting code like ASP or PHP. The code within the dynamic web pages is analyzed at the time they are accessed by the users; consequently, HTML is forwarded to the client's Web browser. A dynamic website can be client-side scripting or server-side scripting or can be both kinds of scripting in order to generate the changing content. In dynamic websites, HTML programming is also involved for the basic structure. The page can use any scripting language like JavaScript with client-side HTML scripting to alter the content of the page. Scripts are run on the server, which hosts the page; it is done with server-side scripting.