With a single click? (In which case, yes, some take a series of clicks to get to)

Or do you mean pages that you’d need to use the Search to get to, or to know an address? (In which case, I don’t know, but I expect there are moderator-only pages and administrator-only pages, and user-specific pages such as private messages, and maybe some content that hasn’t been linked, or that isn’t visible without a search or knowing the URL.)

@ZakuI ‘m thinking of a website where the name of the director of the org. is not found with any of the tabs. I mean it’s not under About, Founders, Membrs, etc. I you don’t know the name of the person or if the name is spelled very unusual way, ....