How Google evaluates E-E-A-T? 80+ signals for E-E-A-T

The article discussed in the podcast the factors that Google considers when evaluating E-E-A-T (expertise, experience, authority, trustworthiness). The author, Olaf Kopp, has compiled over 80 different signals from Google patents and other sources that reflect these factors. He divides these signals into three levels: Document level, Domain level and Source level. The signals at each level provide insights into Google's evaluation criteria for the quality of content, websites and authors.