[forgotmypw17]

Well, from the owner's perspective, it was marked private, without any additional communication.

From a visitor's perspective, it just became a 404 page, also without explanation, so effectively taken down.

[RamblingCTO]

I understand taken down as removed, but I can see that one could also define it as "unavailable".

[forgotmypw17]

From a site visitor's perspective, what is the difference?