AWS Shield - AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS.
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
Reblaze - Reblaze is a cloud-native web application and API protection solution
reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
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.
GeeTest CAPTCHA - GeeTest protects your websites, mobile Apps and APIs from bot threats.