Schema markup or structured data, is the language search engines use to read and understand the content on your post/page/website. And Schema markup on your website.
View example how that work schema markup on search results – Click Here
Schema markup types
There are category wise schema markup types. You can add any schema markup to the website for search engines to better understand the content. For full schema markup type list Click Here.
Validator
If you have add schema markup on your website or page and what to check schema errors. So paste your website’s url on Schema Validator.
Schema Validator – Click Here