Schemas (Structured Data) Snippets
Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet, on web pages, in email messages, and beyond.
Founded by Google, Microsoft, Yahoo and Yandex, Schema.org vocabularies are developed by an open community process, using the firstname.lastname@example.org mailing list and through GitHub.
You can test compliance with technical guidelines using the Rich Results Test and the URL Inspection tool, which catch most technical errors.
In order to be eligible for rich results, mark up your site's pages using one of three supported formats:
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