Collectively named our "public-facing site" we referred to pages like our individual account sign-up (non-paying student athlete users), school registration sign-ups (requiring more authentication and handling payments), our "onboarding" page demonstrating different packages and features, free trial sign-up, and auth/logged-out pages as "public-facing pages".
That naming continued to work once we started public blogs, and when we added another feature leading to a page for every athlete that had a "public-facing" version that showed only certain items, and then a logged-in version with much more info.
In the dev/QA/PM/design trenches, we occasionally interchanged "logged-out version" to mean the same thing.