ModSecurity - ModSecurity is an Open Source web application firewall developed by Trustwave's SpiderLabs.
AWS WAF - AWS WAF is a web application firewall that helps protect your web applications from common web exploits.
F5 NGINX - F5 NGINX is a web application security solution that allows you to protect your applications, APIs, and customer data across cloud servers, on-premises data centers, and architectures.
Barracuda Web Application Firewall - Barracuda Web Application Firewall offers security and DDoS protection against automated & targeted attacks.
FortiWeb - FortiWeb is a web application firewall platform that helps you protect your company’s most critical web apps and APIs from malicious attacks.
Imperva Cloud Application Security - Deploy your applications and data where you want. When you want. Imperva keeps them secure in the cloud, on premises, and in hybrid clouds.