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Core concept · E-E-A-T

Definition

An authoritativeness signal is any measurable indicator — such as backlinks, citations, reviews, structured data, or Wikipedia presence — that communicates to search engines and AI systems that a source is credible and expert within its domain. Authoritativeness signals are the evidence layer that supports E-E-A-T claims. A brand can assert expertise in its content, but authoritativeness is established by external signals — other sources citing the brand, authoritative directories listing it, industry publications referencing it. Building authoritativeness signals is the external-facing component of AI SEO, as distinct from the on-site entity and content work.

E-E-A-T

Trust signal

Co-citation

Source credibility

Topical authority

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