Global Server Load Balancing

In a Global Server Load Balancing (GSLB) architecture, the website is hosted on different servers located in different geo-locations. The users trying to access the website from, let's say Europe, would be served by the server that is located in UK. The GSLB checks the health of the slave servers in a regular time interval, and directs traffic to those servers for best response.

GSLB is useful for its optimal direction of traffic between sites. It is also good at disaster recovery functionality as it assures failover and continuity for data center and multi-site deployment.