Structured data markup is a powerful SEO tool. It helps search engines better understand webpages, allowing them to improve their indexing and ranking of search results. Structured data markup provides webmasters with the ability to add additional information to a webpage, such as product prices, reviews, or product availability. This helps search engines better determine the relevance of a webpage to a user's query, resulting in improved rankings and more visibility. Utilizing structured data markup is an essential part of any SEO strategy.