E-E-A-T
The first E, Experience, is the newest and currently the most decisive: content demonstrating that its author has actually done the thing, with first-hand detail no summariser could fake, stands out in a web filling with machine-written sameness. Named authors with verifiable identities, honest dates, cited sources and visible corrections carry the rest of the framework.
E-E-A-T is not a score you can look up, and no tag switches it on. It is the accumulated evidence that a real, competent someone stands behind the words. For AI citation the logic carries over directly: assistants prefer sources they can attribute and corroborate, which is the same thing by another route.