Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.

Qustodio - Free parental control software. Monitor and track your child's online activity. Block dangerous sites and protect kids from online bullying.

WebTitan - WebTitan is an advanced DNS based web content filter and web security layer that blocks malware, ransomware and phishing attempts as well as providing web content control. Cloud and gateway versions available.

Norton Family - Symantec provides security products and solutions to protect small, medium, and enterprise businesses from advanced threats, malware, and other cyber attacks.

DNSFilter - DNSFilter offers DNS-Based Content Filtering & Threat Protection.

NxFilter - Best performance. You don't want to slow down your network by installing a network security software. NxFilter is a light-weight DNS filter. It doesn't cause any latency issue in your network.