Schema markup is code (semantic vocabulary) that you put on your website to help search engine crawlers better identify and categorize your content to return more accurate results for searchers. If you’ve ever implemented or used rich snippets, you’ll understand exactly what schema markup is and how it works.
While schema has not yet been confirmed as an official ranking metric for Google, many digital marketers believe it can help increase your chances of ranking as well as ranking in position 0: Google’s featured snippet box.
Some of the different types of schema markup you can add to your site include:
Head over to schema.org to learn more about the many different kinds of schema markup you can implement on your site. You can also try out Technical SEO’s helpful schema tool to easily create validated markup to add to your website.