1. A system comprising: a network point of presence associated with a content delivery network (CDN) service provider, wherein the network point of presence includes a DNS server that receives a DNS query from a client computing device, wherein the DNS query comprises a uniform resource locator (URL), wherein the URL includes an identifier associated with a hosted virtual machine instance, wherein the identifier is included in a portion of a DNS portion of the URL, and wherein the DNS server in the network point of presence is operative to: parse the DNS portion of the URL to obtain the identifier associated with the hosted virtual machine instance; determine that the hosted virtual machine is instantiated; and resolve the DNS query by transmitting information associated with the hosted virtual machine.