Microdata (HTML)

Microdata is a part of the WHATWG HTML specification that defines how to include metadata within existing web page content. Search engines, web crawlers, and browsers can extract and process Microdata from a web page and use it to provide a richer browsing experience for users. Search engines benefit greatly from direct access to Microdata because it allows them to understand the information on web pages and provide more relevant results to users. Microdata uses a supporting vocabulary to describe an item and name-value pairs to assign values to its properties. Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and microformats. In 2013, because the W3C HTML Working Group failed to find someone to serve as an editor for the Microdata HTML specification, its development was terminated with a 'Note'. However, since that time, two new editors were selected, and five newer versions of the working draft have been published, the most recent being Working Draft 26 April 2018.

Microdata is a part of the WHATWG HTML specification that defines how to include metadata within existing web page content. Search engines, web crawlers, and browsers can extract and process Microdata from a web page and use it to provide a richer browsing experience for users. Search engines benefit greatly from direct access to Microdata because it allows them to understand the information on web pages and provide more relevant results to users. Microdata uses a supporting vocabulary to describe an item and name-value pairs to assign values to its properties. Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and microformats. In 2013, because the W3C HTML Working Group failed to find someone to serve as an editor for the Microdata HTML specification, its development was terminated with a 'Note'. However, since that time, two new editors were selected, and five newer versions of the working draft have been published, the most recent being Working Draft 26 April 2018. Hello, my name is John Doe, I am a graduate research assistant at the University of Dreams. My friends call me Johnny. You can visit my homepage at www.example.com/~JohnnyD . I live at 1234 Peach Drive, Warner Robins, Georgia. Here is the same markup with added Schema.org Microdata: Hello, my name is John Doe , I am a graduate research assistant at the University of Dreams . My friends call me Johnny . You can visit my homepage at www.example.com/~JohnnyD . I live at 1234 Peach Drive , Warner Robins , Georgia . As the above example shows, Microdata items can be nested. In this case, an item of type http://schema.org/PostalAddress is nested inside an item of type http://schema.org/Person. The following text shows how Google parses the Microdata from the above example code. Developers can test pages containing Microdata using Google's Rich Snippet Testing Tool. Item Type: http://schema.org/Person name = John Doe jobTitle = graduate research assistant affiliation = University of Dreams additionalName = Johnny url = http://www.example.com/~JohnnyD address = Item(1) Item 1 Type: http://schema.org/PostalAddress streetAddress = 1234 Peach Drive addressLocality = Warner Robins addressRegion = Georgia The same machine-readable terms can be used not only in HTML Microdata, but also in other annotations such as RDFa or JSON-LD in the markup, or in an external RDF file in a serialization such as RDF/XML, Notation3, or Turtle. ==References==

Text derived from https://en.wikipedia.org/w/index.php?oldid=1357457124 under CC BY-SA 4.0; modifications have been made.