FortiGSLB Cloud

At a glance

• Editor score
  8.1 / 10
• Pricing
  Pricing on request
• Best for
  Fortinet environments needing DNS-based failover
• Free plan
  No
• Facts checked
  23 Oct 2026

• Where it wins

  • Routes by geography, server performance, load, and health
  • Supports configurable health checks and automatic failover
  • Integrates with FortiADC, FortiGate, and FortiWeb products

• Where it doesn't

  • Pricing is handled through Fortinet Sales or eligible marketplaces
  • Its strongest ecosystem fit is with Fortinet environments
  • Query-log access is not clearly established

Our verdict on FortiGSLB Cloud

FortiGSLB Cloud is Fortinet’s DNS-based global server load balancing service for organizations running applications across multiple data centers or cloud environments. It directs DNS requests using geographic location, server or site availability, and performance or load signals. Mid-market and enterprise teams that need DNS-based traffic management and failover, particularly in Fortinet environments, are the clearest fit.

Routing options include geographic and weighted distribution, along with decisions based on server performance and load. Configurable health checks monitor application endpoints; when a location becomes unavailable, the service can reroute traffic to an available or second-closest service. Primary and secondary DNS, DNSSEC, synthetic application testing across multiple protocols, and DNS history statistics add operational coverage. These capabilities suit teams managing distributed application availability; buyers focused primarily on query-log analysis should clarify that requirement before choosing it.

Fortinet lists integrations with FortiADC, FortiGate SD-WAN, FortiGate SSL-VPN, FortiGate ZTNA/VIP, and FortiWeb, as well as Security Fabric connectors and API integration. That makes it a natural consideration for organizations already using those products, while teams outside the Fortinet ecosystem may prefer to compare services around their existing infrastructure. Fortinet offers the service as a standalone license or as part of FortiAppSec Cloud Enterprise, with purchases through Fortinet Sales or eligible cloud marketplaces. Choose it for DNS routing and failover within a Fortinet-centered environment; consider alternatives if public self-service pricing or a clearly established query-log capability is essential.

Your product? Our editors can test FortiGSLB Cloud in depth and publish a review, labelled as paid · from $149/mo →

FortiGSLB Cloud pricing

FortiGSLB Cloud fact sheet

FortiGSLB Cloud integrations

FortiGSLB Cloud lists 5 integrations on its own site.

• FortiADC
• FortiGate SD-WAN
• FortiGate SSL-VPN
• FortiGate ZTNA/VIP
• FortiWeb

Alternatives to FortiGSLB Cloud

• Akamai Global Traffic ManagementAdvanced DNS traffic steering for applications spanning regions, data centers, and clouds.9.3
• IBM NS1 ConnectManaged authoritative DNS with advanced traffic steering, health checks, and API-driven operations.9.2
• Google Cloud DNSLow-cost GeoDNS for Google Cloud environments, with routing policies and health checks.9.1

See all FortiGSLB Cloud alternatives →

Featured on iTechGuides

FortiGSLB Cloud is listed in our GeoDNS Services directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/fortigslb-cloud/"><img src="https://www.itechguides.com/best/badge/fortigslb-cloud.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 29 Oct 2026 · How we research and update