Alibaba Cloud Web Application Firewall (WAF) vs Gatekeeper: Side-by-Side Comparison (2026)

Mid-market and enterprise teams already operating within the Alibaba Cloud ecosystem should evaluate Alibaba Cloud Web Application Firewall for its API auto-discovery and zero-day detection capabilities, which address the gap most teams face between shadow APIs and emerging threats. The platform covers four NIST CSF 2.0 functions including continuous monitoring with SQL-queryable access logs, giving you audit trails that actually support incident response. Skip this if your architecture is multi-cloud or hybrid; the tool's integration depth assumes you're committed to Alibaba's stack. Network operators and service providers facing multi-vector DDoS attacks will find Gatekeeper's distributed algorithm approach valuable because it actually scales with your bandwidth requirements instead of hitting throughput walls like centralized scrubbing centers do. The open source model with 1,591 GitHub stars means you're not locked into vendor infrastructure, and deployment across your own edge nodes gives you detection latency measured in milliseconds rather than the round-trip delays of cloud mitigation services. Skip this if your primary concern is stopping Layer 7 application attacks; Gatekeeper prioritizes network-layer volumetric defense, leaving sophisticated HTTP floods to separate WAF tooling.

Based on our analysis of core features, integrations, company size fit, deployment model, here is our conclusion: