NSFOCUS - NSFOCUS provides comprehensive, end-to-end protection from the debilitating effects of DDoS attacks.

nginx - A high performance free open source web server powering busiest sites on the Internet.

AWS Shield - AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS. 

DataDome - DataDome provides innovative technology and human expertise to block bad bots.

VeriSign - VeriSign Authentication Services provides solutions that allow companies & consumers to engage...

FortiDDoS - FortiDDoS achieves superior & faster DDoS protection from known and zero-day attacks with low latency. Advanced DDoS protection for enterprise data centers.