Extensible Markup Language (XML)

[Merna]

A human- and machine-readable coding language that adds structure, meaning, or context to a text document. Extensible markup language (XML) ranges from very simple to highly complex (hence “extensible”). Today’s version of HTML is a specialized example of XML. Schema markup is an example of how XML can be used to improve the user experience (UX) of search engine results pages (SERPs).