AWS Shield vs Fastly DDoS Protection: 2026 Comparison
AWS Shield is a free distributed denial of service mitigation tool. Fastly DDoS Protection is a commercial distributed denial of service mitigation tool by Fastly. Compare features, ratings, integrations, and community reviews side by side to find the best distributed denial of service mitigation fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Teams already deep in AWS who need Layer 3/4 DDoS protection without adding vendors should start with AWS Shield Standard, which covers all customers automatically at no cost. The free tier blocks the majority of common volumetric attacks; Shield Advanced adds behavioral analysis and AWS WAF integration for $3,000 annually, meaningful only if you're absorbing sustained multi-Gbps floods regularly. This is not a replacement for application-layer DDoS mitigation or a choice for organizations running multi-cloud infrastructure where you need consistency across providers.
Teams operating high-traffic APIs and web applications will get the most from Fastly DDoS Protection because its pay-for-legitimate-traffic model removes the financial penalty for false positives that tanks ROI on other DDoS services. The 497+ Tbps absorption capacity and adaptive engine handle synchronized multi-vector attacks without manual rule tuning, which matters if your ops team is already underwater. Skip this if you need post-attack forensics and recovery orchestration; Fastly prioritizes real-time mitigation over the investigation side of the incident lifecycle.
