"Checkout" can refer to the final stage of an online purchase or to Checkout.com, a major global fintech company providing a cloud-based platform for businesses to process online payments, manage payouts, and handle card programs, offering tools for fraud detection, identity verification, and optimized transaction acceptance. The company, founded in 2012, serves large enterprises like Sony, SHEIN, and Wise, acting as a unified payments provider to help businesses accept various payment methods globally.