This section identifies the pages on the site that visitors open, then exit from, without viewing any other page. This demonstrates where visitors enter and leave immediately. These percentages refer to the total number of visits that started with a valid Document Type. If the session started on a document with a different type (such as a graphic or sound file), the file is not counted as a Single Access Page, and the session is not included in the total.
This information can be helpful when considering the design of the site with respect to the type of visitors. Consider how well these pages convey your message. Do they need improvement to extend visits, or is it possible that are you attracting the wrong visitors with references to your site?