VLM-GEO – Virtual Global Server Load Balancing

Solution Brief

Virtual LoadMaster GEO - From $3,000

VLM-GEO is a virtual Global Server Load Balancing (GSLB) appliance providing multi-site business continuity and optimized geographic-based redirection of traffic for the best client experience. In the event of a service disruption or the need to scale capacity, mission-critical traffic is seamlessly redirected based on predefined policies to minimize impact and the need for manual intervention. IP Reputation and DNSSEC protect your applications from common threats like DDoS attacks and DNS cache poisoning across hardware, virtual, and cloud. VLM-GEO performance scales near linearly with allocated resources.


  • Performance: Up to 45,000 DNS Queries Per Second (QPS), depending on resource allocation.
  • Effortless scalability with up to 256 IP addresses per FQDN
  • Scheduling Methods: Round Robin, Weighted Round Robin, Fixed Weighted, Real Server Load, Proximity and Location.
  • Fine grained control of traffic using EDNS (Extension Mechanisms for DNS) to redirect based on client IP/Subnet.
  • DNS Security Extensions (DNSSEC): Protects against DNS cache poisoning through origin authentication of DNS data, data integrity, and authenticated denial of existence.
  • Advanced LoadMaster Site Health: Leverage LoadMaster's detailed health reporting for more accurate site health.
  • Control: Use API to dynamically control GSLB


  • Microsoft Azure
  • AWS
  • Hyper-V
  • VMware
  • XEN
  • KVM
  • VirtualBox


To evaluate the features and capabilities of VLM-GEO, simply download a LoadMaster trial and follow the configuration guidelines. You can apply a permanent license to your trial so that you do not have to reinstall once you purchase.

30-Day Free Trial

Featured Resources

The benefits of using global server load balancing in a hybrid cloud environment.

Read Blog Post

For more information, including sizing guidelines, read the VLM-GEO Data Sheet.

Data Sheet

With over 100,000 deployments in over 130 countries, see how our customers use VLM-GEO and our GSLB feature set.

Case Studies

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