F5 BIG-IP DNS vs Link11: Side-by-Side Comparison (2026)

F5 BIG-IP DNS

Enterprise and mid-market security teams needing DNS-layer DDoS defense at scale should evaluate F5 BIG-IP DNS for its ability to absorb volumetric attacks while maintaining authoritative DNS availability; the 100 million RPS capacity and integrated GSLB mean you're not bolting on a separate DDoS appliance. The tool maps cleanly to NIST PR.IR for infrastructure resilience, though its monitoring and anomaly detection lag behind dedicated threat detection platforms. Skip this if your organization needs DNS security to also cover recursive resolver hardening or advanced query-pattern analytics; BIG-IP DNS is built for the authoritative side of the nameserver equation.