·
How to build multi-PSP redundancy that works in production: intelligent payment routing rules, failover testing, and what breaks without them.

Creative briefs, deep dives, and case studies oh my!
Payments gateway failover keeps transactions flowing when a processor goes down. Health-check thresholds, active-active vs. active-passive tradeoffs, and the token-portability problem most teams miss.
·
Direct PSP integration and third-party payment gateways solve different problems and create different constraints. A breakdown of integration time, PCI scope, failover behavior, and lock-in risk so you can pick the right model.
·
Tokenization replaces a card number with a random surrogate value, keeping sensitive data out of your systems and reducing PCI DSS scope. Here’s how it works, what the three token types actually do, and when your PSP’s built-in tokenization isn’t enough.
·