Network address resolution

1. A content delivery method comprising:

receiving, by an origin system, a request from a client device for a content resource, the content resource including at least one embedded resource with a tag;

upon identification of the tag, using at least one delivery parameter to obtain, by the origin system, a modified embedded resource from a content delivery network that is separate from the origin system; and

delivering, by the origin system, the content resource to the client device with the modified embedded resource, wherein the modified embedded resource includes a direct link to a node within the content delivery network that can deliver content associated with the embedded resource.

2. The content delivery method of claim 1 wherein the request is received over an http connection and the at least one delivery parameter includes an IP address of the client device, and further comprising:

passing information based on the client IP address to an application programming interface (API) of the content delivery network;

in association with the API, obtaining a parameter associated with the embedded resource;

identifying, based on the IP address and the parameter, location information for the node in the content delivery network that can serve the content associated with the embedded resource; and

generating the modified embedded resource to include the direct link to the node.

3. The content delivery method of claim 2 wherein the parameter is a popularity parameter.

4. The content delivery method of claim 2 wherein the parameter is a delivery protocol parameter.

5. The content delivery method of claim 2 wherein the information is the IP address.

6. The content delivery method of claim 2 wherein the information is geographic information.

7. The content delivery method of claim 2 wherein the location information includes at least one of an IP address, a virtual IP address, one or more absolute uniform resource locators.

8. The content delivery method of claim 1 wherein the tag is a unique tag.

9. The content delivery method of claim 1 wherein the request is over an http connection and the at least one delivery parameter is a location identifier for the client device, the method further comprising:

passing, by the origin system, the location identifier to an application programming interface (API) of the content delivery network to generate the modified embedded resource relating to the node.

10. The content delivery method of claim 1 wherein the content resource is a hypertext markup language (HTML) document and the embedded resource is a link.

11. A content delivery network comprising:

at least one processor in communication with a non-transitory computer readable medium including computer readable instructions for:

providing an application programming interface (API);

at the API, receiving, from an origin system that is separate from the content delivery network, an embedded resource and at least one parameter associated with the embedded resource;

generating a modified embedded resource providing a direct link to a node within the content delivery network for obtaining content associated with the embedded resource;

delivering, by the content delivery network, the modified embedded resource to the origin system;

receiving, at the node, a request from a client device to obtain the content; and

providing the content to the client device.

12. The content delivery network of claim 11 wherein the computer readable instructions are further for replacing the embedded resource with the modified embedded resource in a resource.

13. The content delivery network of claim 11 wherein the resource is an HTML document and the modified embedded resource is a link.

14. The content delivery network of claim 11 wherein the modified embedded resource includes at least one of an IP address to facilitate communication with the node to obtain the content associated with the embedded resource, a virtual IP address to facilitate communication with the node to obtain the content associated with the embedded resource, and one or more absolute uniform resource locators to facilitate communication with the node to obtain the content associated with the embedded resource.

15. A method comprising:

providing, at a content delivery network, an application programming interface (API);

at the API, receiving, from an origin system that is separate from the content delivery network, an embedded resource and at least one parameter associated with the embedded resource;

generating a modified embedded resource providing a direct link to a node within the content delivery network for obtaining content associated with the embedded resource;

delivering, by the content delivery network, the modified embedded resource to the origin system;

receiving, at the node, a request from a client device to obtain the content; and

providing the content to the client device.