Schema.org

Schema.org is a specification in the Structured Data & Schema category of Generative Engine Optimization resources. Built with HTML, it has 6,030 stars on GitHub and is actively maintained.

Official Schema.org schemas and supporting software — the foundational vocabulary for JSON-LD structured data.

This resource is part of the Awesome GEO curated collection — a hand-picked set of open-source tools, libraries, research papers, and frameworks for optimizing web presence across AI search engines like ChatGPT, Perplexity, Gemini, and Claude.