JustFOIA utilizes an advanced web traffic load balancer to distributes traffic among multiple servers to increase availability and performance for each client. o web applications. While traditional load balancers operate at the transport layer (OSI layer 4), JustFOIA’s advanced routing capability is known as application layer (OSI layer 7) load balancing and gives our development team greater control in managing infrastructure and providing a lightning-fast software product that’s ready to work when you need it.