Schema markup is a type of structured data that is added to a website to provide additional context and information about the content on a page. Schema markup is written in a standardized format, such as Microdata or JSON-LD, and is used to describe the content and relationships between different elements on a page.
Schema markup provides search engines with additional information about a page beyond the visible text. This information can be used to display rich snippets or other types of enhanced search results, which can increase click-through rates and improve visibility in search results.
For example, schema markup can be used to provide information about a product, including its name, price, availability, and product description. This information can be used to display rich snippets in search results, providing users with more information about a product before they click through to the website.
Schema markup is part of the Schema.org vocabulary, which is a common vocabulary used to describe web pages and their content. By using schema markup, websites can help search engines understand what their pages are about and how the content on those pages relates to other pages and topics. This can ultimately lead to improved rankings and increased traffic from search engines.