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Reference.org
Schema.org
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<p>Schema.org is a reference website that publishes documentation and guidelines for using <a href="/facts/Structured_data/j1YyzpJ3">structured data</a> mark-up on web-pages (in the form of <a href="/facts/Microdata_(HTML)/EqKmJ9K8">microdata</a>, <a href="/facts/RDFa/TyPkuLjP">RDFa</a> or <a href="/facts/JSON-LD/UPz7qvTq">JSON-LD</a>). Its main objective is to standardize <a href="/facts/HTML/sSc3fT78">HTML</a> tags to be used by webmasters for creating rich results (displayed as visual data or infographic tables on search engine results) about a certain topic of interest. It is a part of the <a href="/facts/Semantic_Web/NFHo9dB7">semantic web</a> project, which aims to make document mark-up codes more readable and meaningful to both humans and machines. </p>