Patent ID: 11863417
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A system comprising:
a first point of presence (POP) associated with a content delivery network (CDN) service provider, wherein the first POP includes a first domain name system (DNS) server that receives a first DNS query from a client computing device and a cache server in communication with the first DNS server, wherein the first DNS query is associated with a requested resource, and wherein the first DNS server is operative to:
determine a routing method from a plurality of routing methods for providing the requested resource;
select (a) an alternative resource identifier associated with a second DNS server at a second POP of the CDN service provider or (b) an IP address of a cache component of the CDN service provider based at least in part on the determined routing method; and
transmit, to the client computing device, the alternative resource identifier or the IP address.