Structured data (JSON-LD) for AI search
By Abhijay Tondak, Founder · Updated June 25, 2026 · 5 min read
Structured data is machine-readable markup (usually JSON-LD) that tells search and AI engines exactly what a page is about — its entities, author, and key facts. For AI search, the highest-leverage schema types are Article, FAQPage, Organization, and Product, because they let an engine extract and attribute your content with confidence.
Key takeaways
- Structured data removes ambiguity so engines can parse and attribute your content.
- Article, FAQPage, Organization, and Product are the highest-value types for AI.
- JSON-LD is the recommended format — add it once per page in a script tag.
- Schema supports citation; it doesn't replace clear, well-written content.
Why structured data matters for AI
AI engines do better when they don't have to guess. Structured data states a page's facts explicitly — who wrote it, what entity it's about, what the questions and answers are — so the engine can extract and attribute them without inferring from prose alone. That lowers the risk the engine mis-reads you, and raises the odds it cites you.
The schema types that matter most
You don't need every type. Focus on the few that map to how AI answers are built.
- Article / BlogPosting — for guides and resources (headline, author, dates).
- FAQPage — exposes question/answer pairs engines love to lift.
- Organization — establishes your brand as a consistent entity.
- Product — for ecommerce items eligible to appear in AI shopping answers.
- BreadcrumbList — clarifies site structure and context.
How to implement it
Add a single JSON-LD script tag per page describing the primary entity. Keep it accurate — schema that contradicts the visible content is worse than none, and engines discount sites that game it. Validate with a schema testing tool before shipping.
Frequently asked questions
Is JSON-LD better than microdata?
Yes — JSON-LD is Google's recommended format and is far easier to maintain because it lives in one script block rather than being woven through your HTML.
Does structured data guarantee citations?
No. It makes your content easier to parse and attribute, which helps — but the content still has to be clear, accurate, and authoritative.
Which schema should a blog post use?
Article or BlogPosting for the post itself, FAQPage if it includes a Q&A block, plus Organization and BreadcrumbList for context.
Put this into practice — free.
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