The analogy we like to use is to think of web pages as empty "Houses."
In web terms the address (URL) can be used in a variety a ways, ie. search, marketing, etc.
If houses are empty containers then you need to create rooms to display your information. In Optimizely this is where blocks come in to play. Learn more about creating pages/blocks and how to use them.
Before you can understand what a page is, understanding basic terminology, navigation structure and the main properties is equally important. Office editors have a number of page types & default page properties available to display content.
Every page has some basic properties which are always available, located at the top of the editor.
The Title Property is used to provide additional information within the page’s heading(H1.) When creating New pages, the name used is the default text displayed as the heading. It is strongly recommended that you keep page names short and use the Title Property to enter longer strings of text. (See: CEO example) Note: This property is named “Page Title” for the District Office Detail pages.

All pages include SEO fields, which not only help your pages rank higher with search engines, they also provide important information to the site.