Before revision: Such validators as the soon-to-be-deprecated Google Structured Data Testing Tool, or more recent Google Rich Results Test Tool , Yandex Microformat validator, and Bing Markup Validator can be used to test the validity of the data marked up with the schemas and Microdata.
After revision: Such validators as the deprecated, Schema.org Markup Validator Google Structured Data Testing Tool, or more recent Google Rich Results Test Tool , Yandex Microformat validator, and Bing Markup Validator can be used to test the validity of the data marked up with the schemas and Microdata.