ModSecurity - ModSecurity is an Open Source web application firewall developed by Trustwave's SpiderLabs.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Shadow Daemon - Shadow Daemon is a collection of tools to detect, record and prevent attacks on web applications.
Akamai - Akamai is the leading content delivery network (CDN) services provider for media and software delivery, and cloud security solutions.
AWS WAF - AWS WAF is a web application firewall that helps protect your web applications from common web exploits.
ShieldSquare - ShieldSquare provides invisible and comprehensive site scraping protection to your website.