Single-page Session
Beginner PronunciationEN/ˈsɪŋɡəl peɪdʒ ˈsɛʃən/
A single-page session is a session in which the visitor opened exactly one page and left without navigating to any other page.
The count is based on the number of pageviews in a session, not on the quality of that pageview, which is why the older definition of bounce rate was exactly this ratio. A single-page session is not automatically a failure: a contact page, a pricing page and an article that fully answers the question are single-page by nature. It is also frequently confused with a session without interaction, since a visitor can watch a video, submit a form or fire events on that one page and still leave a single-page session behind.
FAQ
In older tools yes, since a bounce was defined as a session with one pageview. GA4 changed the definition to the absence of engagement, so a session lasting more than ten seconds or firing a key event is not a bounce even when it stays on one page.