The Website Builder application available for Odoo 8 through Odoo 10 can be considered what is commonly known as a CMS. A CMS is a collection of tools that allows you to structure, organize, and manipulate your website without having to interact directly with the inner workings of your website. A key feature of a CMS is the ability for non-programmers and those with little technical expertise to create and edit content on the website once the initial structure of the site has been designed.
In many ways, Odoo is coming into a very crowded market that has a great variety of both open source and paid CMSs you can choose to build your website. Here are few of the more popular website CMSs, all of which at this point have considerably more configuration options and greater levels of adoption.