There are two main types of websites in our system, these are Static and Dynamic Websites. First, we understand what are these types of websites are 

• Static Website: A static site is one that is usually written in plain HTML and what is in the code of the page is what is displayed to the user. In a static website, all the pages are static pages. All the changes are done manually to develop the website. No programming languages required to develop it. Only knowledge of HTML Tages is required to prepare it.
• Dynamic Website: A dynamic site is one that is written using a server-side scripting language such as PHP, ASP, JSP. In these websites, content is come by the scripting language from other files or from a database depending on actions taken by the user or requirement.

Advantages of a Static Websites

• Flexibility is the main advantage of a static site.
• Every page can be different if desired, to match the layout to different content.
• The designer is free to put in any special effects that a client may ask for in a unique way on different pages.
• Cost is generally lower up-front than a dynamic site.

Disadvantages of Static Websites

• The main problem with any static site appears when you wish to update the content. Unless you are conversant with HTML and the design methods used in the site then you have to go back to the designer to have any content changes made. This may be perfectly ok when a new page is required which needs design input, but if all you want to do is change some text then it can be a nuisance for both client and designer.
• The second main problem is scalability. If you wish to sell products, then then you may have to construct individual pages for each one, which can take considerable time, effort, and cost and not easy to maintain.
• Finally Costs - There are ongoing costs for updating the content and it disturbs your budget also...

Advantages of Dynamic Website

• The main advantage of dynamic sites is that by connecting them to databases you can easily pull in information in an organized view. For example, Create product pages or categories of related products sorted in a variety of different ways depending on how the user wants to view them.
• Connect to a database means that you can also create a content management system CMS (like WordPress/Joomla/ etc…) an interface that allows the client to input and manage data via a web-based series of administration pages. That content can be the text for their pages and images to go along with the text, or items in their product range with categories, specifications, short and long descriptions, images, etc. In both these cases, it can be as simple or as complex as the client requires.
• There are little or no ongoing costs unless there is a change in the basic design or an extra capability added.

Disadvantages of Dynamic Websites

• The design of a dynamic site is more fixed than a static one because many of the pages come from a template, and data is coming from a database and make multiple pages of similar type. So for instance all your product pages will be essentially the same page layout with different data being displayed.
• While some customization capability can be built in it is usually quite limited, such a selecting from a set of pre-defined options.
• Separate page layout and designs or any changes to particular pages are not normally possible.
• Costs are higher than for a static website, and additional functionality may also cost more, particularly if it's something that wasn't envisaged originally and requires re-writing of the core code or database.