The Sercurius free service includes:
A client account to protect web applications with all their domain names.
Multivector DDoS protection
A Web Application Firewall (WAF): OWASP WAF rules, bad request method blocks, IP reputation blacklists, source IP flood control, known bad requests blocks etc etc...
All domain names which are added will automatically get a free LetsEncrypt SSL certificate
Every web application will be daily scanned on security issues and will notify the user by email.