is much discussion on other websites of canon policies and what sources of
information should be included.
There is also a universal agreement: The six Star Wars films, the five live action Star Trek television shows, and the ten Star Trek live action movies are at the top of the pecking order.
All analysis on this website comes straight out of physics, those sources, and reason, and therefore holds unless you have a compelling reason to discard one or more of those three.
Movies and shows are only canon, plus a couple novels.
All other Star Wars stuff is also canon, although lower in the heirarchy.
Has a canon policy of its own.