Microdata for adding products to Google Shopping.
https://support.google.com/merchants/answer/6069143?hl=en-AU
Widgets · eCommerce
Get access to data on 6,589,882 websites Microdata for Google Shopping Customers. We know of 1,950,284 live websites using Microdata for Google Shopping and an additional 4,639,598 sites that used Microdata for Google Shopping historically and 933,617 websites in the United States.
Microdata for Google Shopping websites that are also using other technologies.
Get a list of 6,589,882 websites using Microdata for Google Shopping which includes location information, hosting data, contact details, 1,950,284 currently live websites and an additional 949,701 domains that redirect to sites in this list. 4,639,598 sites that used this technology previouslyand 933,617 websites in the United States currently using Microdata for Google Shopping.
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