PayPal JavaScript SDK system valid from 2019.
https://developer.paypal.com/docs/checkout/
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Get access to data on 2,734,403 websites that are PayPal JavaScript SDK Customers. We know of 1,118,049 live websites using PayPal JavaScript SDK and an additional 1,616,354 sites that used PayPal JavaScript SDK historically and 625,475 websites in the United States.
Get a list of 2,734,403 websites using PayPal JavaScript SDK which includes location information, hosting data, contact details, 1,118,049 currently live websites and an additional 1,125,723 domains that redirect to sites in this list. 1,616,354 sites that used this technology previouslyand 625,475 websites in the United States currently using PayPal JavaScript SDK.
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