Proxy rotation is the practice of cycling the exit IP across a pool of addresses so that requests are spread out instead of stacking on one IP. It is the single most effective way to keep a high-volume workload under a target's rate limits and reputation checks.
Why rotation works
Sites detect automation by watching how much traffic comes from one IP in a short window. Rotation defeats that signal: if each request exits through a different address, no single IP ever looks abnormally busy.
Modern pools rotate through a backconnect gateway. You connect to one stable host and port, and the gateway assigns a fresh exit per request behind the scenes — you never manage a list of individual IPs.
Controlling rotation
Rotation is the default, but you control it. Add country or city targeting to keep every rotated IP inside the geography you need. Add a sticky session when a workflow must hold one IP for a few minutes before rotating again.
The right cadence depends on the target: aggressive rotation for broad crawls, sticky windows for stateful flows. Same gateway, different parameters in the username.