Originally published at claudeguide.io/schema-markup-aeo-guide
Schema Markup for AEO: Complete Implementation Guide
Schema markup is structured data embedded in your HTML that explicitly tells AI engines what your content is and what questions it answers. FAQPage schema is the highest-value markup for AEO — it maps directly to AI-generated Q&A answers. Implementing FAQPage, HowTo, and Article schema takes 30–60 minutes per page and can meaningfully increase citation rates from ChatGPT, Perplexity, Claude, and Google AI Overviews.
This guide covers every schema type relevant to AEO with complete, copy-paste JSON-LD examples.
Why schema markup matters for AEO
AI engines parse structured data as a high-confidence signal about your content. When Perplexity encounters a page with FAQPage schema, it knows with certainty which questions the page answers and what the authoritative answers are — without needing to infer this from the prose.
This reduces ambiguity. An AI engine reading unstructured prose must decide whether the page answers the query. A page with FAQPage schema directly asserts "these are the questions this page answers." That's a strong citation signal.
Google's documentation (April 2026) confirms: pages with FAQPage schema are eligible for FAQ-style AI Overviews rich results. Multiple independent analyses of Perplexity citation patterns show that FAQPage schema correlates with higher citation rates for informational queries.
How to implement JSON-LD schema
All schema should be implemented as JSON-LD in a `<script
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