It's not trivial. Archive.org intentionally makes it an annoying process to either have material removed or excluded from their index/ing. You also must own and control the domain in question where the content is located, which nullifies the premise here (waypointnda.com is owned by someone else).

It used to be trivial to hide existing content in their index from being viewable (for your domains). They entirely changed that a number of years ago.