During a recent Capture The Flag (CTF) competition, the organizers chose SafeLine WAF for the challenge environment.
They opted for SafeLine WAF to mimic real-world conditions of having a Web Application Firewall (WAF) in production.
SafeLine was chosen because it is free, open-source, easy to deploy with one-liner install, and provides solid protection even in the free Personal Edition.
Users can easily get started with SafeLine by adding domains, enabling different protections, and switching to 'Audited Mode' for testing.