Patent ID: 8769118

Claim:
A point of presence (POP), in a content delivery network (CDN), for returning Internet protocol (IP) addresses to resolve domain name service (DNS) requests, the POP comprising: a content store, the content store having content from one or more content providers for distribution over the Internet to end-users; a hybrid DNS resolver wherein: the hybrid DNS resolver acts in an authoritative mode for DNS requests for content in the content store; the hybrid DNS resolver acting in the authoritative mode determines a first IP address in response to a first DNS request, without the hybrid DNS resolver receiving the first IP address from another DNS resolver after the hybrid DNS resolver received the first DNS request; the hybrid DNS resolver acts in a recursive mode for DNS requests for content not in the CDN; and the hybrid DNS resolver acting in the recursive mode receives a second DNS request and refers the second DNS request to another DNS system to return a second IP address; and a connection with an end-user device, wherein: the end-user device comprises: a device DNS resolver, wherein the device DNS resolver is configured to assist in resolving IP addresses for DNS requests from the end-user device; and an Internet application; and the hybrid DNS resolver receives DNS requests from the Internet application for resolving IP addresses without going through the device DNS resolver.