A ComfyPage web-site has a number of special pages. Some of the special pages can be edited but none of them can be deleted because they all have a special purpose within your site.
The title and purpose of each special page is listed by the site manager. The purposes of the special pages are listed here ...
Index - The index page is the first page of your site. If your site's address was example.com then when a visitor goes to example.com the page they see will be the index page.
Page Not Found Error - A visitor will see this page if they request a page from your site that doesn't exist.