Where can I learn more about Schema.org markup and the Open Graph Protocol for products?
You can read the following links for more information on the use of Schema.org:
- https://schema.org/Product
- https://developers.google.com/structured-data/rich-snippets/products
- https://yandex.ru/support/webmaster/supported-schemas/goods-prices.xml
For more information on using Open Graph:
