Traditional web application firewalls (WAF) rely on regular expression pattern matching rules. They’re difficult to manage and require never-ending rules tuning to eliminate false positives that can block legitimate traffic. Fastly’s next-gen WAF (formerly Signal Sciences) leverages a fundamentally different approach that effectively detects and blocks malicious traffic without rules tuning. Our web app and API protection solution deploys quickly and provides visibility everywhere your apps operate. Our protection is so reliable 90%+ of customers use it in full blocking mode. It’s easy to set up and integrates with the DevOps and security tooling your team is already using.