PayPal JavaScript SDK system valid from 2019.
https://developer.paypal.com/docs/checkout/
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Get access to data on 2,771,132 websites that are PayPal JavaScript SDK Customers. We know of 1,185,262 live websites using PayPal JavaScript SDK and an additional 1,585,870 sites that used PayPal JavaScript SDK historically and 660,428 websites in the United States.
Get a list of 2,771,132 websites using PayPal JavaScript SDK which includes location information, hosting data, contact details, 1,185,262 currently live websites and an additional 1,171,844 domains that redirect to sites in this list. 1,585,870 sites that used this technology previouslyand 660,428 websites in the United States currently using PayPal JavaScript SDK.
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