Google: Inside Search

Data, Structured Data, Microdata

What is Structured Data and Why You Need To Know Now: "Structured Data Outline I. Definition: Data on a website that can be classified by a search engine. II. 4 Types of Structured Data: – is a collaborative structured data effort by Google, Microsoft, and Yahoo! Microformats – basic, simplest form of structured data Microdata – next generation including HTML5 RDFa – most functionality, works with all XML-based languages JSON-LD – extract and store data from all of the above . . . ." (read more at link above)

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