ModSecurity - ModSecurity is an Open Source web application firewall developed by Trustwave's SpiderLabs.
Barracuda Web Application Firewall - Barracuda Web Application Firewall offers security and DDoS protection against automated & targeted attacks.
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.
AWS WAF - AWS WAF is a web application firewall that helps protect your web applications from common web exploits.
FortiWeb - FortiWeb is a web application firewall platform that helps you protect your company’s most critical web apps and APIs from malicious attacks.
SiteLock - SiteLock software provides advanced website security, daily security scans, web app firewall with a CDN to deliver content more securely.