Structured data and schema markup help search engines understand webpage content by adding organized information in a special format like JSON-LD. When a webpage includes schema markup, search engines can read and parse this data to identify key details such as the type of content (e.g., recipe, event, product) and its properties (e.g., name, date, price). This understanding allows search engines to show enhanced search results called rich snippets, which provide users with more useful information directly in the search page. The process starts with adding the structured data script to the webpage, then the search engine reads and processes it, and finally displays improved search results. This can lead to higher user engagement and better SEO performance. However, structured data is not visible to users on the webpage itself and does not guarantee higher rankings alone. It is one of many factors that improve search engine optimization.