High-Level Design Preview

Load Balancer

One address, many servers — traffic distribution, health checks, and L4 vs L7 routing.

Round robin, least connections, health checks, and horizontal scaling's first force multiplier.

Core Design Challenge

"How does one URL reach ten app servers?"

Premium

Unlock “Load Balancer”

You are viewing the concept preview. Subscribe to unlock the interactive system design visualizer, complete step-by-step walkthroughs, and code editors.

Every problem simulation, step-by-step
Full LLD pattern walkthroughs + code editors
HLD deep dives & real system design breakdowns

$19one-time · lifetime

Founding price for early users — locked in for life.