Huh youtube has new audience analytics
>New viewers watched your content for the first time.
>Note: Viewers who watch from a private browser, deleted their watch history, or haven't watched your channel in over a year are considered new viewers.
>Casual viewers have watched your channel occasionally for a while. They have watched your channel at least once per month for one to 5 months in the past year.
>Regular viewers have been watching your channel consistently for a long time. They have watched a video on your channel at least once per month for more than 6 months in the past year. They are your most loyal audience members.