Schema.org
Schema.org is a collaborative, community-driven initiative that creates, maintains, and promotes schemas for structured data markup on web pages. It provides a shared vocabulary of tags (or microdata) that webmasters can use to mark up their content in ways recognized by major search engines like Google, Bing, Yahoo, and Yandex. This structured data helps search engines understand the context and meaning of web content, enabling rich results such as knowledge panels, reviews, events, and recipes in search listings.
Developers should learn and use Schema.org to improve SEO and enhance user experience by making web content more interpretable to search engines, which can lead to higher click-through rates and better visibility in search results. It is essential for e-commerce sites, local businesses, blogs, and any website aiming to appear in rich snippets or voice search results, as it helps search engines accurately parse and display key information like product details, business hours, or article metadata.