Abstract: A system, method, and computer readable medium for managing resources maintained in resource cache components are provided. A network storage provider storing one or more resources on behalf of a content provider obtains client computing device requests for content. The network storage provider provides resources that are received and maintained on resource cache components. The network storage provider either processes requests or provides notifications to the resource cache components to facilitate the management of resources that need to be updated or are otherwise treated as invalid.

Abstract: A computer-implemented method for uploading and storing a file. The file is automatically transcoded to the format(s) of registered device(s) associated with an entity. The transcoded files are thus prepared for download and access by the registered devices.

Abstract: A system, method and computer-readable medium for request routing based on content popularity information are provided. A client computing device transmits a first DNS query to a content delivery network service provider. The content delivery network service provider transmits an alternative resource identifier in response to the client computing device DNS query. The alternative resource identifier is selected as a function of popularity information pertaining to the requested resource. The client computing device then transmits a second DNS query to the content delivery network service provider. The content delivery network service provider can then either resolve the second DNS query with an IP address of a cache component or transmit another alternative resource identifier that will resolve to the content delivery network service provider. The process can repeat until a DNS nameserver resolves a DNS query from the client computing device.

Abstract: When a client requests content from a Content Delivery Network based system (or other system), that content is typically provided from a source capable of providing high performance to that client. However, if the system determines that the client is using a slow connection, then the content is transmitted to the client from a source that provides a lower performance to that client, with a minimal or no performance penalty observable by the user of the client.

Abstract: When a client requests content from a Content Delivery Network (or other system), a first portion of the content is requested from a source capable of providing high performance to that client. When the client has a sufficient amount of the content to perform its function, then additional portions of the content can be requested from a source that provides a lower performance to that client with a minimal or no performance penalty to the user of the client.

Abstract: Aspects of the present disclosure relate to the caching of network content requested by a user of a client computing device during a browsing session. The client computing device's various networks and varying bandwidth can have a negative impact on the browsing session. Caching of network content can enhance performance. For example, network content can be cached on a wireless mobile device so that it is available on the device at a further time without requiring significant bandwidth or, in some cases, even a network connection. Predicting the bandwidth at the time the cached content will be accessed can allow customized caching and an improved user experience.

Abstract: A system, method, and computer readable medium for managing secure content by CDN service providers are provided. A network storage provider stores one or more resources on behalf of a content provider. A CDN service provider obtains client computing device requests for secure content. Based on processing first signature information, the CDN service provider determines whether the secure content is available to the client computing device. If the CDN service provider does not maintain the requested content, the CDN service provider transmits a request to the network storage provider. Based on second signature information and an identifier associated with the CDN service provider, the network storage provider processes the request based policy information associated with the identifier.

Abstract: When a client requests content from a Content Delivery Network (or other system), a first portion of the content is transmitted to the client from a source capable of providing high performance to that client. When the client has a sufficient amount of the content to perform its function, then additional portions of the content can be transmitted to the client from a source that provides a lower performance to that client with a minimal or no performance penalty to the user of the client.

Abstract: A system and method for management and processing of resource requests are provided. A content delivery network service provider receives a DNS query from a client computing device corresponding to a requested resource from the client computing device. The content delivery network service provider associates the requested content into a set of content segments. For each content segment, the content delivery network service provider identifies the network address of a registered content provider, such as peer computing device, and a cache component of the content delivery service provider. The content delivery network service provider also provides tokens for requesting the content from a registered content provider. The client computing device obtains the content from the registered content providers and/or the cache component of the content delivery network service provider.

Abstract: A system, method and computer-readable medium for request routing. A DNS server at a content delivery network service provider obtains a DNS query corresponding to a resource requested from a client computing device and associated with a first resource identifier. The first resource identifier includes a first portion with DNS information and a second portion with path information. The DNS server selects a network computing component for processing the requested resource based on the DNS portion of the resource identifier and transmits information identifying the selected network computing component to the client computing device.

Abstract: As exterior routing protocols generally do not provide information about the internal routing paths of an autonomous system, a particular autonomous system has limited information about the internal health of other autonomous systems. However, if a monitoring system has access to routing data and/or other network data from multiple points of an autonomous system, the monitoring system can estimate, with some accuracy, the health of the autonomous system. In turn, by monitoring at least some of autonomous systems forming a larger internetwork, such as the Internet, the monitoring system can estimate the overall health of at least portions of the internetwork.

Abstract: A set of transcoding techniques are described for encoding media content on the fly based on device requesting the content. A copy of media content (video or audio file) is stored at a content delivery network (CDN) point-of-presence (POP) server or some other network edge server device. When a device requests the content, the CDN POP server determines the type of device based on the information contained in the request and transcodes the content on-the-fly into the correct encoding for that particular type of device when providing the content to the device. For example, if the requesting device is recognized to be a mobile phone having a particular operating system, the edge server can transcode the media content into the format suitable to display at the mobile phone using that particular operating system. The transcoding can be performed dynamically at the time of transmitting the content to the device.

Abstract: Aspects of the present disclosure relate to the generation and delivery of content including unique and shared components. A content delivery network service provider can obtain requests for content from client computing devices. Based on information provided in the request or otherwise managed by executable code on the client computing device, the CDN service provider obtains one or more pieces of content that may be shared by more than one user or client computing devices. Additionally, the CDN service provider obtains one or more pieces of content that will not be shared by more than one user or more than one client computing device. Responsive to the content request, the CDN service provider can combine the one or more pieces of shared content and the one or more pieces of unique content and deliver the combined content to the requested client computing device.

Abstract: Network computing systems may implement data loss prevention (DLP) techniques to reduce or prevent unauthorized use or transmission of confidential information or to implement information controls mandated by statute, regulation, or industry standard. Implementations of network data transmission analysis systems and methods are disclosed that can use contextual information in a DLP policy to monitor data transmitted via the network. The contextual information may include information based on a network user's organizational structure or services or network infrastructure. Some implementations may detect bank card information in network data transmissions. Some of the systems and methods may be implemented on a virtual network overlaid on one or more intermediate physical networks that are used as a substrate network.

Abstract: Watermarking techniques are described which can be performed at network edge locations such as a Content Delivery Network (CDN) point-of-presence (POP). An edge server can identify users by request and apply a watermark based on the user to media content stored locally. Performance is improved by moving the watermarking from a central location closer to the user in terms of network proximity. An edge server can receive instructions on what type of watermark to assign and how to assign it. The edge server can use requester's identity to create and apply watermarks at the time of transferring media content to the requester. Individualized watermarking is applied to the bits transmitted to the device, the watermark indicating the specific user downloading the stream, time of transmission, etc. Watermarking can be applied throughout all of the frames of the media content rather than merely attaching it at a specific place.

Abstract: A system and method for management and processing of resource requests are provided. A content delivery network service provider receives a DNS query from a client computing device corresponding to a requested resource from the client computing device. The content delivery network service provider associates the requested content into a set of content segments. For each content segment, the content delivery network service provider identifies the network address of a registered content provider, such as peer computing device, and a cache component of the content delivery service provider. The content delivery network service provider also provides tokens for requesting the content from a registered content provider. The client computing device obtains the content from the registered content providers and/or the cache component of the content delivery network service provider.

Abstract: With the advent of virtualization technologies, networks and routing for those networks can now be simulated using commodity hardware rather than actual routers. For example, virtualization technologies such as those provided by VMWare, XEN, or User-Mode Linux can be adapted to allow a single physical computing machine to be shared among multiple virtual networks by providing each virtual network user with one or more virtual machines hosted by the single physical computing machine, with each such virtual machine being a software simulation acting as a distinct logical computing system that provides users with the illusion that they are the sole operators and administrators of a given hardware computing resource. In addition, routing can be accomplished through software, providing additional routing flexibility to the virtual network in comparison with traditional routing. As a result, in some implementations, supplemental information other than packet information can be used to determine network routing.

Abstract: A system, method, and computer-readable medium for updating request routing information associated with client location information are provided. A content delivery network service provider receives a DNS query from a client computing device. The DNS query corresponds to a resource identifier for requested content from the client computing device. The content delivery network service provider obtains a query IP address corresponding to the client computing device. Based on routing information associated with the query IP address, the content delivery network service provider routes the DNS query. The process further includes monitoring performance data associated with the transmission of the requested resource and updating routing information associated with the query IP address based on the performance data for use in processing subsequent requests form the client computing device.

Abstract: A system, method and computer-readable medium for request routing. A DNS server at a content delivery network service provider obtains a DNS query corresponding to a resource requested from a client computing device and associated with a first resource identifier. The first resource identifier includes a first portion with DNS information and a second portion with path information. The DNS server selects a network computing component for processing the requested resource based on the DNS portion of the resource identifier and transmits information identifying the selected network computing component to the client computing device.

Abstract: A system and method for content distribution are provided. A content provider generates a network topology having one or more subnetworks made up of content sources. The content provider segments content, such as applications, into segments for distribution. The content provider then distributes the content such that for each identified subnetwork, each content segment is distributed to a content source. Subsequent, client computing device requests for content can be serviced by selecting a content source in a particular subnetwork selected for delivering the requested content to the client computing device to minimize traffic flow of the requested content through the nodes of the distribution network.