What is Trust & Proof?
Trust & Proof covers the signals search systems use to assess whether your claimed expertise is genuine and corroborated by external sources. This includes E-E-A-T signals — Experience, Expertise, Authoritativeness, Trustworthiness — operationalized through author entity markup, citation patterns, review schema, named bylines, and the quality of sites that link to you.
Why It Matters
Google's Search Quality Rater Guidelines assign the highest weight to E-E-A-T for queries where poor information could harm users — medical, financial, legal, and purchase decisions. Brands that cannot demonstrate verifiable expertise face structural ranking disadvantages no amount of technical optimization can overcome.
How We Score It
We evaluate four layers: author entity completeness (Person schema, credentials, external footprint), citation quality (authoritative source references), review coverage (AggregateRating backed by verified platforms), and external corroboration (authoritative third-party mentions). External corroboration is weighted most heavily as the hardest signal to manufacture.
Common Problems We Find
Anonymous content — pages with no named author or empty bio pages. Reviews existing on pages but not declared in structured data. Brands with detailed credentials on their About page but no connection between those credentials and the content those experts authored.
How We Fix It
We build author entity profiles for every contributor: Person schema, structured credentials, cross-platform entity corroboration. We implement review schema across eligible pages and connect aggregations to verified platforms. For high-E-E-A-T categories, we produce editorial standards declarations.
Research Behind It
US Patent 8,560,484 introduced agent rank — quality scores assigned to individual authors based on corroborated expertise signals, propagated to documents attributed to that author. This is why we recommend investing in author entity development before investing in content volume.