Abstract: Various techniques for redirecting content requests are disclosed. In some embodiments, in response to receiving a request for content published by a publisher from a client at a redirect host configured to implement a content delivery policy for the publisher, it is determined based on the content delivery policy whether to select a publisher server for servicing the request. In the event that a determination is made not to select a publisher server for servicing the request, the client or request is redirected to a content delivery network. In the event that a determination is made to select a publisher server for servicing the request, the client or request is redirected to the selected publisher server.

Abstract: Crowd based content delivery is disclosed. In some embodiments, managing content delivery includes receiving a specification from a resource provider of an availability of a content delivery service at the resource provider, selecting the resource provider to service requests for a content item, facilitating caching of the content item at the resource provider, and redirecting a request for the content item to the resource provider for servicing.

Abstract: Crowd based content delivery is disclosed. In some embodiments, managing content delivery includes receiving a specification from a resource provider of an availability of a content delivery service at the resource provider, selecting the resource provider to service requests for a content item, facilitating caching of the content item at the resource provider, and redirecting a request for the content item to the resource provider for servicing.

Abstract: Directing clients based on communication format is disclosed. In some embodiments, in response to receiving a request from a client capable of communicating via a plurality of supported communication formats, a communication format that is expected to give optimal performance is selected from the plurality of supported communication formats, and the client is directed to a server that is configured to communicate with the selected communication format.

Abstract: A server configured to operate as either or both a web server and a DNS server is disclosed. Such a server responds to a received content request by either directly servicing the request or redirecting the request to another server capable of handling the request, and the server responds to a DNS request by at least partially resolving a domain name of the request and responding to the request with a DNS response.

Abstract: Facilitating content accessibility via different communication formats is disclosed. In some embodiments, in response to receiving a content request from an IPv6 enabled client, the requested content is provided to the IPv6 enabled client in IPv6 format, wherein the requested content is originally obtained in IPv4 format from an IPv4 enabled server and translated into IPv6 format.

Abstract: A data collection system for generating alerts is disclosed. In some embodiments, information is gathered from a plurality of internet facilities that are used for malicious purposes. In response to detecting in the gathered information data that satisfies an alert condition associated with malicious activity, an alert to warn a potential target of the malicious activity is generated.

Abstract: A data collection system that provides a search engine is disclosed. In some embodiments, a search engine comprises a database configured to store information gathered from a plurality of internet facilities that are used for malicious purposes, wherein the database is indexed by one or more identification parameters associated with an entity, and an interface for searching the database and retrieving a relevant portion of the stored information.

Abstract: Managing TCP anycast requests at content delivery network nodes is disclosed. In some embodiments, serving a request includes receiving a request at a node of a plurality of nodes comprising a content delivery network, wherein each of the plurality of nodes share a same anycast IP address to which the request is directed and servicing the request at the node.

Abstract: Managing TCP anycast requests at content delivery network nodes is disclosed. In some embodiments, managing traffic includes receiving a request at a first node of a content delivery network, determining at the first node that the request should be serviced by a second node of the content delivery network, and redirecting the request to the second node, wherein the first node and the second node of the content delivery network comprise endpoints for serving content and wherein the content delivery network is at least in part an anycast network.

Abstract: Managing TCP anycast requests at content delivery network nodes is disclosed. In some embodiments, managing traffic includes receiving a request at a first node of a content delivery network, determining at the first node that the request should be serviced by a second node of the content delivery network, and redirecting the request to the second node, wherein the first node and the second node of the content delivery network comprise endpoints for serving content and wherein the content delivery network is at least in part an anycast network.

Abstract: Managing TCP anycast requests at content delivery network nodes is disclosed. In some embodiments, managing traffic includes receiving a request at a first node of a content delivery network, determining at the first node that the request should be serviced by a second node of the content delivery network, and redirecting the request to the second node, wherein the first node and the second node of the content delivery network comprise endpoints for serving content and wherein the content delivery network is at least in part an anycast network.