Request routing utilizing popularity information

A system for responding to resource requests, the system comprising:

• a computing device, having a processor and a memory, the computing device operative to:
• receive a request for a first resource from a client computing device;
• and
• return the requested first resource to the client computing device including one or more embedded resource identifiers,
• wherein the one or more embedded resource identifiers include information for causing a DNS query corresponding to the embedded one or more resource identifiers to resolve to a domain corresponding to a content delivery network service provider and
• wherein the one or more embedded resource identifiers corresponds to a uniform resource locator, wherein a popularity identifier is included in a DNS portion of the uniform resource locator accessible during the processing of the DNS query and related to a popularity of resource associated with the DNS query.

A system for processing resource requests comprising:

• a computing device, having a processor and a memory to present a first network point of presence associated with a content delivery network service provider,
• wherein the first network point of presence includes a first DNS nameserver component 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, wherein a popularity identifier is included in a DNS portion of the first resource identifier accessible to the first DNS nameserver component, and
• wherein the first network point of presence is operable to:
• parse, by the DNS nameserver component, the first resource identifier so as to obtain the popularity identifier for use in further obtaining popularity information regarding the requested resource, wherein the popularity information corresponds to the popularity identifier;
• generate a second resource identifier based at least upon at least a portion of the popularity information, wherein the second resource identifier resolves to a domain corresponding to the content delivery network;
• and
• transmit the second resource identifier to the client computing device.

A method for processing resource requests comprising:

• receiving a DNS query from a client computing device by a computing device associated with a content delivery network service provider, wherein the DNS query corresponds to a requested resource associated with a first resource identifier, wherein a popularity identifier is included in a DNS portion of the first resource identifier accessible to a DNS nameserver component;
• parsing, by the DNS nameserver component, the first resource identifier so as to obtain the popularity identifier for use in further obtaining popularity information regarding the requested resource, wherein the popularity information corresponds to the popularity identifier;
• generating a second resource identifier based at least upon at least a portion of the popularity information, wherein the second resource identifier corresponds to a resource cache component to the content delivery network service provider;
• and
• transmitting the second resource identifier to the client computing device.