Experience, Expertise, Authoritativeness, and Trust — the signals that show a page (and its author) can be relied on.
E-E-A-T is CommandSEO's fifth layer (L5). It's especially important for pages where credibility matters — author pages, about pages, and anything giving advice. Clear authorship, real expertise, accurate information, and trust signals all contribute.
It's not a single tag you add; it's a property the whole page and site demonstrate. Author and about pages exist largely to make E-E-A-T legible.