Fastly DDoS Protection vs Gatekeeper: side-by-side comparison (2026)

Fastly DDoS Protection: Cloud-based DDoS protection for apps and APIs with automatic mitigation. Built by Fastly.

Gatekeeper: An open source DDoS protection system that uses distributed algorithms to defend against multi-vector attacks and scale to handle varying bandwidth requirements for network operators and service providers.

The table above shows where their features, integrations, deployment and company size fit differ.

Fastly DDoS Protection is made by Fastly. Gatekeeper is open-source with 1,591 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Fastly DDoS Protection and Gatekeeper are both DDoS Mitigation products, and both cover DDoS. Key differences: Fastly DDoS Protection is Commercial while Gatekeeper is Free, Gatekeeper is open-source. Use the table above to see where features, deployment and company size fit differ.