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Engineering

How smart routing balances success rate, latency, and customer exclusions

Inside the selector: how each connection is weighted using live health, latency, and your own rules.

· 7 min · ProxyAPI

01

One endpoint, multiple routes

You always connect to the same gateway. Behind it, the selector maintains a current view of available exits and chooses a route that matches proxy type, country, provider, and session.

02

Health beats chance

Each exit receives a weight based on success rate, latency, active load, and recent health checks. A weak exit gradually leaves rotation instead of making the whole pool unreliable.

03

You still stay in control

Add modifiers to the proxy username when you need a particular type or a sticky session. You can also exclude an exit that consistently fails against your specific target.

curl -x 'https://sk_live_YOUR_KEY-country-se-type-isp-session-job42:@proxy.proxyapi.se:443' https://example.com