What Is Schema Markup?
Schema markup is code that describes elements on your website in a language that all major search engines understand. That way, search engines can present users with richer results.

Schema markup (also known as structured data) is a code standard used to help search engines understand and categorize webpage content.
It also provides specific details about webpage content, allowing search engines to display richer and more informative search results for users.

Schema is a language used to represent data—the actual data is called structured data. Structured data organizes your page’s content and makes the information easier for search engines to understand.