Payment Gateway
Technology that securely captures and transmits payment data from customers to processors.
What is Payment Gateway?
A payment gateway is the technology layer that securely captures payment information from customers and transmits it to the payment processor for authorization. For e-commerce, the gateway encrypts card data entered on checkout pages. For in-person payments, it connects POS terminals to processing networks. Gateways handle the real-time communication for authorization requests and responses, enabling the "approved" or "declined" messages customers see at checkout.
Why It Matters
The gateway is your front line for payment security and customer experience. A reliable gateway means fast authorizations, minimal downtime, and secure data handling. Gateway features like tokenization, fraud screening, and retry logic directly impact your approval rates and security posture. Many modern processors bundle gateway services, but enterprise merchants often use standalone gateways for flexibility.
Related Terms
Payment Processor
A company that handles credit card and debit card transactions between merchants and banks.
Tokenization
Replacing sensitive card data with a non-sensitive placeholder (token) for secure storage.
PCI Compliance
Adherence to security standards for organizations that handle credit card data.
Virtual Terminal
A web-based interface for manually processing card payments without physical hardware.
Frequently Asked Questions
Many processors include gateway services. Separate gateways are typically used by larger merchants who want flexibility to switch processors or route transactions to multiple acquirers.
A gateway is the underlying technology. A virtual terminal is a web-based interface (using the gateway) that lets you manually key in transactions from any browser.
Gateway speed and reliability directly impact conversion. Slow authorizations or downtime means abandoned carts. Features like saved cards and one-click checkout improve conversion rates.
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