Microdata for adding products to Google Shopping.
https://support.google.com/merchants/answer/6069143?hl=en-AU
Widgets · eCommerce
Get access to data on 6,520,441 websites that are Microdata for Google Shopping Customers. We know of 1,057,887 live websites using Microdata for Google Shopping and an additional 5,462,554 sites that used Microdata for Google Shopping historically and 322,534 websites in the United States.
Microdata for Google Shopping websites that are also using other technologies.
Get a list of 6,520,441 websites using Microdata for Google Shopping which includes location information, hosting data, contact details, 1,057,887 currently live websites and an additional 944,561 domains that redirect to sites in this list. 5,462,554 sites that used this technology previouslyand 322,534 websites in the United States currently using Microdata for Google Shopping.
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