NetScaler AppFirewall is a best-of-breed web application firewall (WAF) that protects web applications and sites from both known and unknown attacks, including all application-layer and zero-day threats.
Despite increasing security challenges, NetScaler AppFirewall delivers comprehensive protection without degrading throughput or application response times. It is available either as a standalone appliance or integrated within the NetScaler ADC platform, NetScaler AppFirewall is rated as the price/performance WAF leader by NSS Labs. And if you are moving critical applications and data to the cloud, NetScaler Web App Security Service protects your cloud applications. Simplified configuration controls further mitigate risk, and its Pay-As-You-Grow pricing allows you to invest based on your current needs, then scale up later at your convenience.