WAF

AWS WAF is a web application firewall that helps protect apps and APIs against bots and exploits that consume resources, skew metrics, or cause downtime.

Azure Web Application Firewall is a cloud-native service that protects your web applications from bot attacks and common web vulnerabilities such as SQL injection and cross-site scripting.

Akamai is a global CDN and cloud services provider that optimizes content delivery, enhances web performance, provides security solutions and enables edge computing.

Cloudflare provides content delivery network services, cloud cybersecurity, DDoS mitigation, and ICANN-accredited domain registration services.

F5, Inc. is an American technology company specializing in application security, multi-cloud management, online fraud prevention, application delivery networking (ADN), application availability & performance, network security, and access & authorization.