F5 BIG-IP DNS vs Nexusguard DNS Protection: 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.

Nexusguard DNS Protection

Mid-market and enterprise networks absorbing repeated DNS-layer DDoS attacks need Nexusguard DNS Protection because its 40+ global scrubbing centers and coverage of 50,000 ASNs worldwide means you're filtering malicious traffic before it reaches your infrastructure, not after. The vendor's strength in continuous monitoring and traffic filtering maps directly to NIST DE.CM, where real-time anomaly detection stops attacks in flight. Skip this if your organization faces predominantly application-layer DDoS threats; Nexusguard is DNS-focused by design, not a general-purpose DDoS mitigation platform.