Dynu DNS Failover review
Low-cost monitored DNS failover with free coverage and broad monitor support.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Dynu DNS Failover is a monitored DNS continuity service for organizations that need to detect outages and redirect traffic when an endpoint becomes unavailable. It monitors websites, servers, DNS services, ports, SSL certificates and other endpoints from multiple geographic locations. The service is available through the web and a REST API, making it suitable for teams managing online services that need automated DNS changes and outage notifications without a large monitoring budget.
Pricing is straightforward and centered on monitor capacity. The Free plan includes 3 monitors, full monitoring and DNS failover features, and no credit card is required. The 5 monitors plan costs $9.99 per year, while 10 monitors costs $14.99 per year, 20 monitors costs $24.99 per year, 50 monitors costs $49.99 per year, 100 monitors costs $89.99 per year, and 500 monitors costs $349.99 per year. Each paid tier includes full monitoring and DNS failover functionality. The annual structure makes the service particularly suitable for smaller deployments and teams that can forecast their monitoring needs.
Its main technical strength is breadth within DNS-based failover. Checks can run at intervals from 1 minute to 24 hours across four monitoring regions, with DNS, HTTP(S), keyword, ping, port and SSL monitor types. Confirmed outages can trigger automatic changes for A, AAAA, CNAME and MX records, followed by automatic failback to primary settings. Email and SMS notifications add an alerting layer, while the REST API supports DNS and account management. Dynu DNS Failover is a good fit for cost-conscious teams needing multiple check types and automated DNS continuity. Organizations seeking application-level traffic routing or a different failover model should consider an alternative.
Dynu DNS Failover pros and cons
- Where it wins
- Free plan includes 3 monitors and full failover features
- Checks DNS, HTTP(S), SSL, ports, keywords and ping
- Automatic failover, failback, notifications and REST API
- Where it doesn't
- Failover is DNS-record based rather than application-level routing
- Paid plans require annual billing
- Capacity is organized around fixed monitor-count tiers
Dynu DNS Failover fact sheet, pricing and score →
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