Metadata is data that provides information about other data. In the context of websites and digital content, metadata is information that describes the content and structure of a webpage or file. This information can include the title of the content, author, date of publication, keywords, descriptions, and other details that help search engines and users understand the content and context of the page or file. Metadata is typically included in the HTML code of a webpage or in the file properties of a digital file. Effective use of metadata can improve search engine visibility, user experience, and accessibility of digital content.