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Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy. Quad9 routes your DNS queries through a secure network of servers around the globe. The system uses threat intelligence from more than a dozen of the industry’s leading cyber security companies to give a real-time perspective on what websites are safe and what sites are known to include malware or other threats. The service exists to provide a more secure Internet for everyone, and was founded by three collaborators: IBM, PCH, and GCA.