E-A-T stands for Expertise, Authoritativeness, and Trustworthiness three key factors used by Google to assess the quality and credibility of web content. Expertise refers to the depth of knowledge or skill demonstrated by the content creator. Authoritativeness measures the reputation of the creator, the content, and the website as a reliable source within its field. Trustworthiness evaluates the accuracy, transparency, and integrity of the information provided. Together, E-A-T helps ensure that users receive high-quality, reliable information, especially on topics that impact health, safety, or finances.