DNSFilter - DNSFilter offers DNS-Based Content Filtering & Threat Protection.
Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.
DNSCrypt Protocol - A protocol to improve DNS security
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.
Synology DS216+II - Synology DS216+II is a great data integration hardware which is provided by Synology Technologies.
ScoutDNS - ScoutDNS is a powerful DNS content filter solution that protects your network from ever increasing internet threats. Affordable and Easy to Use.