E-E-A-T is a framework in the Google quality rater guidelines. Raters use it to judge how reliable a page is. It is not a direct ranking factor or a score, but Google’s systems try to show content with these signs.
Letter
Meaning
Experience
The writer has real, first hand experience
Expertise
The writer has the knowledge or skill
Authoritativeness
The site or author is known in the field
Trustworthiness
The page is accurate, honest and safe (most important)
Show it with author bios, sources, clear About and Contact pages and honest reviews. See E-E-A-T and Helpful Content.