Dynamic websites  can be more expensive than static to develop initially, but the advantages are numerous. If your website requires changes at regular intervals, a dynamic websites with a content management system (CMS) make it simple for a non-technical person to create and update the content of the site. Some examples of dynamic website features could be: content management system, e-commerce system, bulletin / discussion boards, intranet or extranet facilities, ability for clients or users to upload documents, ability for administrators or users to create content or add information to a site (dynamic publishing).

Best choice for websites with numerous pages and frequent content changes

Commonly, the dynamic websites use a database where they store information and from where they get their content, depending on what the user/visitor asks for. The use of databases is the one that allows easy adding/removal of content on dynamic websites, since it is not necessary to process the website itself but simply to indirectly manage content in the database.