1. What Is Schema Markup. Schema markup is a code (semantic vocabulary) that you put on your website, with the purpose of helping the search engines return more informative results for users. Schema markup allows you to create enhanced descriptions that appear in search results, just like in the screenshot below.

Schema markup is a code (semantic vocabulary) that you put on your website, with the purpose of helping the search engines return more informative results for users. Schema markup allows you to create enhanced descriptions that appear in search results.