1. A computer-implemented method for creating a list of trustworthy DNS resolvers, the method comprising: building, at a computer, a resolver profile for a resolver that is operable to send queries to a domain name server, wherein the resolver profile is based on one or more of a top-talker status of the resolver, a normalcy of distribution of domain names queried, a continuity of distribution of query type, a RD (Recursion Desired) bit status, and information related to query traffic at one or more nodes in a distributed domain name server topology; determining that the resolver is trustworthy by applying a policy to the resolver profile; and adding, by the computer, the resolver to a list of trustworthy resolvers based on the determining that the resolver is trustworthy.
1. A computer-implemented method for creating a list of trustworthy DNS resolvers, the method comprising: building, at a computer, a resolver profile for a resolver that is operable to send queries to a domain name server, wherein the resolver profile is based on one or more of a top-talker status of the resolver, a normalcy of distribution of domain names queried, a continuity of distribution of query type, a RD (Recursion Desired) bit status, and information related to query traffic at one or more nodes in a distributed domain name server topology; determining that the resolver is trustworthy by applying a policy to the resolver profile; and adding, by the computer, the resolver to a list of trustworthy resolvers based on the determining that the resolver is trustworthy. 5. The computer-implemented method of claim 1 , further comprising receiving the resolver profile, wherein receiving comprises receiving a profile for the resolver sending queries to a top-level domain name server.