Are all items classified as pages in a Sitecore project?

In Sitecore, the concept of "pages" refers to items that have presentation details set, meaning they are configured to be displayed in a web context. This typically involves having a layout, rendering, or other presentation components assigned to them. Hence, only items with these properties are considered pages; they can be rendered to display content on a website.

While all items in Sitecore exist within the content tree, they do not all serve the same purpose or have the same capabilities. Many items act as data holders, templates, or are used for internal organization, and do not necessarily have associated presentation details. Only those items specifically configured with the necessary presentation aspects are classified as pages that can be rendered in the browser, making the classification an essential aspect of Sitecore's item structure and functionality.

The other options suggest misunderstandings about the classification system in Sitecore. Some imply that all items are treated equally or can be deemed as pages without proper configuration, which does not align with how Sitecore manages and renders content.