Global Server Load Balancing (GSLB) is typically used to provide data center failover or to enhance end user performance by directing users to their closest data centers using geolocation. GSLB is a DNS based system that manipulates the DNS response based on the availability and performance profile of the data centers.

Resiliency and Disaster Recovery
Run two data centers in an Active-Passive architecture so that if one data center fails, traffic will be sent to the other.

Load Balancing and Geo-Location
Distribute traffic between multiple data centers in an Active-Active architecture based on specific criteria including: fixed weight, round robin, data center health check, geo-location of the client etc.

Hybrid cloud, multi cloud
Easily migrate live workloads between multiple clouds or run a hybrid cloud setup in active-active or active-passive.