A liquidity bridge is the technology that sits between your trading platform and your liquidity providers, handling all order routing and price streaming in real time. Without a correctly configured bridge, an A-book or hybrid broker cannot route client orders to the market, cannot manage hedging effectively, and cannot control execution quality. Despite being the most operationally critical piece of brokerage infrastructure after the trading platform itself, the liquidity bridge is also one of the least understood - particularly among brokers who inherited a setup without knowing exactly how it was built. This guide explains what a bridge does, how it works technically, and why its configuration directly determines the quality of execution your clients experience.