Microdata for adding products to Google Shopping.
https://support.google.com/merchants/answer/6069143?hl=en-AU
Widgets · eCommerce
Get access to data on 6,692,599 websites that are Microdata for Google Shopping Customers. We know of 1,047,131 live websites using Microdata for Google Shopping and an additional 5,645,468 sites that used Microdata for Google Shopping historically and 323,267 websites in the United States.
Microdata for Google Shopping websites that are also using other technologies.
Get a list of 6,692,599 websites using Microdata for Google Shopping which includes location information, hosting data, contact details, 1,047,131 currently live websites and an additional 942,853 domains that redirect to sites in this list. 5,645,468 sites that used this technology previouslyand 323,267 websites in the United States currently using Microdata for Google Shopping.
Countries
Financial
Group
Region