The best Web Application Firewall (WAF) vendors are F5 BIG-IP, Imperva Incapsula,
Cloudflare, Fortinet FortiWeb and Imperva SecureSphere Web Application Firewall.
F5 is the top solution according to IT Central Station reviews and rankings.
One reviewer writes: "Hardware and software partitioning enable us to deploy multiple instances, two vCMPs", and another reviewer writes: "It can determine if the system is going down, then route the traffic somewhere else".
The 2nd best product is Imperva Incapsula. A user writes: "A solution that's easy to implement, but doesn't offer local support",
and another reviewer writes: "Protects your network environment from threats and defends your infrastructure from malicious behaviors".
See our free Buyer's Guide for Web Application Firewall (WAF).