CacheGuard provides a firewall, an antivirus, a proxy cache, a reverse proxy, a web traffic compressor, a URL guarding facility, a WAF (Web Application Load Balancer), a WAF (Web Application Firewall), a traffic shaper. CacheGuard is available as an OS appliance to install on a hardware or virtual machine. You can implement it transparently in any existing architecture as your main central point where all the Web traffic passes through.