I am considering writing some stories, which in part revolve around a fictional university. In that regard, I would like to set up a website for the university, complete with course catalogue and all the bells and whistles, maybe even allow fans to enroll for some weird courses inspirred by the stories. The website will clearly state that this is NOT a real university, but I have no idea where my legal limits are in this regard? I understand that there are both national and especially international variations on the rules, but what would I legally be able to do, considering that "online" means "everywhere/global"?
Although it differs from place to place, I assume that there are some common rules about what I can include if I decide to start, for example, dingdonguniversity.com and build a purely (and openly) fictional university. What limitations are there to the use of the term "university" in a url and name, if it is clearly stated that the project is not a real and/or accredited university?