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Glossary

Structured data (schema markup)

What Structured data (schema markup) means, why it matters for marketers, and where it shows up in practice.

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Definition

Structured data is machine-readable information about a page, usually written in JSON-LD using the schema.org vocabulary, that tells search engines and AI systems what the page describes: an article, a product, an organization, an FAQ.

Also called schema markup, JSON-LD

MegaMCP glossary32 terms

Explained

Google uses some types for rich results, and has narrowed others (FAQ rich results are now limited to a small set of sites, and HowTo rich results were retired). The markup remains useful to any system that parses pages.

Keep it truthful and matching the visible content; markup that describes things not on the page can be ignored or penalized.

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