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A technology that helps secure domain name lookups by incorporating a chain of digital signatures into the lookup process. Using DNSSEC, resolvers can determine whether the query responses they receive have been generated by authenticated DNS servers. By accepting only authenticated query results, resolvers can prevent attackers from hijacking the lookup process and directing Internet users to deceptive websites. Full deployment of DNSSEC ensures that users are connected to the Internet Protocol (IP) address that genuinely corresponds to the domain name specified in a uniform resource locator (URL).