A method of limiting reuse of domain name information includes the steps
of requesting the information by a local domain name server from an
authoritative domain name server, and providing this information to a
requestor, such as a client or server. The domain name information
includes an allowable usage limit that represents a maximum number of
times that the information can be provided to the requestor before
revalidating the information. A system for limiting reuse of domain name
information includes an authoritative domain name server, a local domain
name server, and a requestor. The authoritative server provides the
information, which includes the allowable usage limit, in response to a
request by the local server. The request from the local server may
include the number of times that the local server provided the
information to one or more requestors as an observed usage.