The Authority Index

Marcus Vale

Director of Visibility Strategy

Marcus Vale researches the structural and strategic factors that influence AI search visibility. His work explores entity authority, structured data impact, internal linking systems, and content frameworks that increase citation probability across AI engines.

Research by Marcus Vale

  1. Does Schema Complexity Matter? How Nested Structured Data Drives AI Citations

    Tested evidence shows deeper schema nesting can raise citations. Learn structured data impact on AI answers, especially in Google AI Overviews, with clear KPIs.

    2/26/2026 | Engine Analysis

  2. Beyond Backlinks: Entity Authority and Answerability in LLM Search

    Entity Authority drives AI citations beyond backlinks. See how answerability, entity linking, and structured data improve LLM visibility in 2026 in AI engines.

    2/25/2026 | Ranking Signals