ScoutDNS is a powerful cloud managed RPZ (response policy zone) option for adding DNS Layer security to the network. Although an effective content filter in the age of HTTPS sites, RPZs go much further in protecting your network through advanced DNS security controls. ScoutDNS can prevent DNS Rebinding attacks, block Covert Channel attempts, and limit the scope of available domains for Malware C&C.
Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
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.
SafeDNS - A powerful DNS-layer defense against internet threats. Protect your networks and employees with our cloud-based security solutions, and join more than 4000 businesses that trust us
Kaspersky Security for Internet Gateways - Kaspersky Security for Internet Gateways offers secure internet access for the employees.
1.1.1.1 - The free app that makes your Internet safer.