IBM, Packet Clearing House (PCH) and the Global Cyber Alliance (GCA) announced the official launch of the new Quad9 DNS service on Nov.16, providing a free service to help internet users reduce risk and stay secure online.
DNS (Domain Name Service) is a foundational element of internet infrastructure matching IP addresses with domain names. The name Quad9 is a reference to the actual IP address used by the service which is 9.9.9.9.
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