IDC Frontier DNS/GSLB review
A cloud DNS service with optional weighted traffic distribution and monitored site failover.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
IDC Frontier DNS/GSLB is a cloud DNS service for organizations managing DNS zones and records, with an optional global server load balancing (GSLB) feature for multi-site traffic distribution or disaster recovery. The DNS service includes zone, record, and template management, and changes to DNS settings are reflected in DNS servers in real time. An API is available for DNS operations. It fits teams that need managed DNS plus weighted distribution and failover, rather than geographic routing controls.
The GSLB option adds weighted round-robin distribution and health checks for A and CNAME records. Checks can use HTTP, HTTPS, or TCP; unhealthy endpoints are removed from distribution so traffic can shift to healthy sites, including backup sites. Email or Slack notifications report health-check failures and recovery. These capabilities make the service relevant when teams need monitored endpoint health and an automated response to site problems. Slack is the listed integration.
Pricing is structured in two parts: DNS is billed per zone, while GSLB is an optional add-on billed per record. The published description says prices are in Japanese yen before tax; the DNS plan has no query-based charges. This split is important for evaluating a deployment with multiple zones or GSLB records. The product is a fit for teams prioritizing weighted failover and straightforward DNS management; teams requiring documented geographic routing methods should compare alternatives. Documentation and email are the listed support channels.
IDC Frontier DNS/GSLB pros and cons
- Where it wins
- Weighted round-robin with HTTP, HTTPS, and TCP health checks
- Removes unhealthy endpoints and can fail over to backup sites
- Real-time DNS updates, an API, and email or Slack notifications
- Where it doesn't
- GSLB is an add-on to the paid DNS service
- Billing is split per zone for DNS and per record for GSLB
- Routing is weighted round-robin, not documented geographic routing
IDC Frontier DNS/GSLB fact sheet, pricing and score →
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