gen-briefly-explain-a-load-balancer-and-one-common-misconception-6551

Briefly explain a load balancer and one common misconception about it.

# Load Balancer **What it is:** A load balancer distributes incoming network traffic across multiple servers to prevent any single server from becoming overwhelmed. It acts as a traffic coordinator, routing requests to available servers based on factors like current load, server health, or geographic location. **Common misconception:** Many people think load balancers automatically make applications faster. In reality, load balancers primarily improve *availability* and *capacity* by spreading work across servers. They don't speed up individual requests—in fact, they may add a tiny bit of latency. The performance benefit comes from handling more concurrent users and preventing server overload, not from making each transaction faster.