Array ASF Series Web Application Firewall vs Blackwall GateKeeper: Side-by-Side Comparison (2026)

Array ASF Series Web Application Firewall: WAF protecting web apps from OWASP Top 10, DDoS, and zero-day attacks. built by Array Networks. Core capabilities include OWASP Top 10 attack protection, Layer 7 DDoS defense, Zero-day attack detection and blocking..

Blackwall GateKeeper: Web security & traffic filtering platform for hosting providers. built by Blackwall. Core capabilities include L7 DDoS mitigation with behavioral analysis and signature-based detection, Web Application Firewall with protection against SQLi, XSS, RCE attacks, Bot detection and mitigation for credential stuffing, scraping, and spam..

Both serve the Cloud Web Application and API Protection market but differ in approach, feature depth, and target audience.

Array ASF Series Web Application Firewall differentiates with OWASP Top 10 attack protection, Layer 7 DDoS defense, Zero-day attack detection and blocking. Blackwall GateKeeper differentiates with L7 DDoS mitigation with behavioral analysis and signature-based detection, Web Application Firewall with protection against SQLi, XSS, RCE attacks, Bot detection and mitigation for credential stuffing, scraping, and spam.

Array ASF Series Web Application Firewall is developed by Array Networks. Blackwall GateKeeper is developed by Blackwall. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Array ASF Series Web Application Firewall integrates with VMware, Hyper-V, KVM, AWS, Azure and 1 more. Blackwall GateKeeper integrates with cPanel, WHMCS, DirectAdmin, ISPmanager, AWS and 4 more. Check integration compatibility with your existing security stack before deciding.

Array ASF Series Web Application Firewall and Blackwall GateKeeper serve similar Cloud Web Application and API Protection use cases: both are Cloud Web Application and API Protection tools, both cover DDOS, WAF, Web Security. Review the feature comparison above to determine which fits your requirements.