Amazon.com, Inc.
Request routing utilizing encoded DNS-based messaging parameters

Abstract:

Systems and method with regard to the routing of a client computing device DNS query within a content delivery network service provider domain as a function of additional request routing information embedded as parameters in messages transmitted as part of the DNS queries generated by, or on behalf of, the client computing device are provided. By parsing and processing all the received information, the CDN service provider may select components of a CDN network reflective of the additional request routing information.