eBay is an online auction and shopping website where users can buy and sell a wide variety of goods and services worldwide. It facilitates millions of transactions daily between individual and business sellers using an electronic platform. eBay uses a distributed technology infrastructure of approximately 200 servers across four locations in the US to seamlessly support millions of users conducting searches, purchases and sales simultaneously. It employs microservices, continuous integration and other modern techniques to develop, deploy and manage its platform. Payment is typically made electronically through PayPal though other options exist.