Proxy
Media buyingAn intermediary server that routes your traffic through a different IP, hiding your real location and machine. Media buyers use proxies to manage multiple ad accounts, view offers and landers from the target geo, and stop the platform linking every account to one connection. Paired with an antidetect browser, each account gets its own clean IP.
Example
Checking how a US-only offer's lander renders by routing through a New York residential proxy.