Supported formats Google Lookup supports structured data in the following formats, unless documented normally. On the whole, we advocate using a structure which is least complicated so that you can apply and maintain (usually, that's JSON-LD); all 3 formats are Similarly fine for Google, provided that the markup is legitimate https://rafaelfbbte.blogdiloz.com/31117375/the-smart-trick-of-json-schema-custom-validation-message-that-no-one-is-discussing