What are some alternatives?
When comparing Comodo cWatch Website Security Stack and nginx, you can also consider the following products
AWS WAF - AWS WAF is a web application firewall that helps protect your web applications from common web exploits.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Oracle WebLogic - Receive a complimentary technical review and consultation on moving your Oracle WebLogic Server applications into containers.
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.
AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.