CacheGuard Gateway is described as 'Free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on' and is a Firewall in the security & privacy category. There are more than 100 alternatives to CacheGuard Gateway for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best CacheGuard Gateway alternative is AdGuard, which is both free and Open Source. Other great apps like CacheGuard Gateway are NextDNS, TrafficMonitor, OPNsense and pfSense.