Microdata
Microdata is a specification for embedding structured data within HTML documents to provide machine-readable information about web content. It uses a set of attributes to define items, properties, and values, enabling search engines and other applications to better understand and process the data. This helps improve search results, enable rich snippets, and support data integration across platforms.
Developers should learn Microdata when building websites that need enhanced SEO, rich search results (like star ratings or event details), or structured data for accessibility and data aggregation. It is particularly useful for e-commerce sites, blogs, and content-heavy platforms where clear semantic markup can boost visibility and interoperability with tools like Google's Structured Data Testing Tool.