Stripe makes it easy for developers to accept credit cards on the web.
https://stripe.com/
Payment · Checkout Buttons · Payments Processor
Get access to data on 531,879 websites that are Stripe Customers. We know of 190,958 live websites using Stripe and an additional 340,921 sites that used Stripe historically and 141,387 websites in the United States.
Get a list of 531,879 websites using Stripe which includes location information, hosting data, contact details, 408,848 currently live websites which includes 217,890 domains that redirect to sites in the list. 340,921 sites that used this technology previously and 141,387 websites in the United States currently using Stripe.