Open DNS

OpenDNS is the world’s largest cloud-delivered security platform, with the industry’s best uptime, serving more than 65 million daily users spread across 160+ countries. OpenDNS continuously invests in new methodologies to eradicate botnets, malware, and phishing through DNS, and use the system to intelligently route users around these threast, all while speeding up the Internet and moving the state of the art for the Domain Name System forward.  Their global network handles over 80 billion DNS requests a day. By just pointing DNS to us, security is simple to deploy with 100% uptime — no hardware, software, or manual updates.