A schema refers to structured data markup that is added to web pages to provide additional context and information to search engines. It is a standardized format for organizing and presenting data, allowing search engines to better understand the content and display it in a more relevant and informative way to users.

By using schema markup, website builders can specify the type and properties of different elements on a web page, such as products, articles, events, reviews, and more. This structured data helps search engines interpret the content accurately and display rich snippets or enhanced search results, which can improve the visibility and click-through rates of the website in search engine results pages (SERPs).

Schema markup provides a way to communicate important information about the content of a web page in a machine-readable format. It enhances the understanding of the website’s context, enabling search engines to provide more detailed and targeted search results to users. Implementing schema markup in website building can lead to improved search engine optimization (SEO) and a better user experience by making the website’s content more accessible and informative.