Request routing utilizing client location information

A system for request routing comprising:

• a first network point of presence associated with a content delivery network (CDN) service provider, wherein the first network point of presence includes a first DNS server that receives a DNS query from a client computing device, wherein the DNS query corresponds to a requested resource associated with a first resource identifier provided by a content provider, and wherein the first DNS server in the first network point of presence comprises at least one computing device associated with a memory and is operative to:
• obtain a query IP address associated with the DNS query at the first DNS server, wherein the query IP address is associated with the client computing device;
• obtain a location-based identifier associated with the query IP address and a confidence factor, the confidence factor corresponding to a degree of confidence associated with the accuracy of the location-based identifier to query IP address association;
• and
• process the DNS query based on evaluation of the confidence factor.

A non-transitory, computer-readable storage medium comprising one or more computer-executable components for managing DNS queries, the one or more computer-executable components configured to be executed by one or more processors of a computer system to cause the computer system to:

• obtain a DNS query from a client computing device at a first DNS server, wherein the DNS query corresponds to a requested resource associated with an original resource identifier provided by a content provider and wherein the first DNS server corresponds to a content delivery network (CDN) service;
• obtain a query IP address associated with the DNS query at the first DNS server, wherein the query IP address is associated with the client computing device;
• obtain a location-based identifier associated with the query IP address and a confidence factor, the confidence factor corresponding to a degree of confidence associated with the accuracy of the location-based identifier to query IP address association;
• and
• process the DNS query based on evaluation of the confidence factor.