Topical Authority

Topical authority is how comprehensively a site covers a subject area, measured across content depth, breadth, and internal linking between related pages, rather than any single page's individual quality, making it a property of a site's overall content structure.

Why it matters

Topical authority compounds in a way individual page optimization doesn't: a well-linked cluster of pages covering a topic from multiple angles signals depth to both traditional search ranking and AI retrieval systems in a way no single standalone page, however well-written, can replicate alone.

Related terms

• Hub and Spoke

  Hub and spoke is a content structure built around one page covering a core concept in depth, the hub, linked to multiple pages each addressing a related sub-question, the spokes, giving both crawlers and readers a clear map of how a topic's pieces relate to the whole.

• Information Gain

  Information gain is the unique value a piece of content adds beyond what's already publicly available on a topic, whether through original data, a distinct analytical angle, or details not covered by existing sources, rather than a restatement of consensus information.

• knowsAbout

  knowsAbout is a schema property that explicitly declares a brand, organization, or author's areas of expertise or topical focus, giving AI systems a direct signal for topical relevance rather than requiring them to infer it purely from a site's published content.

• Entity

  An entity is a distinct, recognizable thing, a brand, person, product, or concept, that an AI system can identify, disambiguate, and connect consistently across different sources, rather than treating as just an unrelated string of text each time it appears.