A backconnect proxy is a gateway that sits between you and a large pool of IP addresses. You connect to one endpoint, and the gateway handles all the routing behind the scenes. Each request can exit through a different IP without you managing proxy lists, switching servers, or dealing with dead IPs manually.
You configure your application to point at a single address and port. That is your gateway. Behind it, the provider maintains a pool of residential or datacenter IPs. When your request hits the gateway, it selects an available IP from the pool and forwards your traffic through it. The target website sees the exit IP, not your real address and not the gateway. The selection can be random (new IP per request) or sticky (same IP per session), depending on how you configure your credentials.
ScaleProxy's gateway works exactly this way. You connect to gate.scaleproxy.com, and behind that single endpoint sits a pool of 85M+ residential IPs across 195+ countries.
The alternative to backconnect is managing static proxy lists yourself. That means checking for dead IPs, rotating manually, and replacing banned addresses. It does not scale. Backconnect architecture handles all of that for you. One endpoint, millions of IPs, automatic rotation or sticky sessions. You focus on your actual work instead of proxy management.
Try ScaleProxy's backconnect gateway. $10 for 10 days trial with full plan access.