Sophos UTM - Sophos UTM integrates complete security software within a single appliance.
Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
NextDNS - Block ads, trackers and malicious websites on all your devices.
OPNsense - OPNsense® you next open source firewall. Free Download. High-end Security Made Easy™. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.