Abstract: Techniques are described for managing preloading of data for client computing systems. A client computing system may provide one or more persistent data storage caches on local storage, such as to support a particular software program executing on the client computing system (e.g., a Web browser program, with the persistent data storage cache designed to store browser cookies and other data for later access by the Web browser program). Additional data may be stored in such a persistent data storage cache by preloading those data groups before they are requested by the client computing system (e.g., based on interactions of a user of the client computing system with an executing program on the client computing system). Particular data groups to preload may be selected in various manners, including to provide a specified type of minimum functionality to a client computing system based on the preloaded data groups.

Abstract: A processing device receives an event notification indicating a security configuration change of a cloud computing resource associated with a member account. In response, the processing device identifies a security policy associated with an administrative account corresponding to the member account and evaluates the security policy against the security configuration change to determine compliance with the policy. If not in compliance, the processing device generates a change event indicating a repair to the security configuration of the cloud computing resource to bring the security configuration into compliance with the security policy.

Abstract: Techniques are described for managing preloading of data for client computing systems. A client computing system may provide one or more persistent data storage caches on local storage, such as to support a particular software program executing on the client computing system (e.g., a Web browser program, with the persistent data storage cache designed to store browser cookies and other data for later access by the Web browser program). Additional data may be stored in such a persistent data storage cache by preloading those data groups before they are requested by the client computing system (e.g., based on interactions of a user of the client computing system with an executing program on the client computing system). Particular data groups to preload may be selected in various manners, including to provide a specified type of minimum functionality to a client computing system based on the preloaded data groups.

Abstract: A system, method, and computer-readable medium for point of presence (POP) based traffic surge detection and mitigation are provided. The system detects a traffic surge for a target group of resources directed at a source POP based on the target group's rank shifts and volume changes among recent time intervals. The system mitigates the detected traffic surge by identifying destination POPs with spare capacity and routing at least a portion of incoming requests for the target group of resources to the destination POPs in accordance with their spare capacities.

Abstract: A processing device receives an event notification indicating a security configuration change of a cloud computing resource associated with a member account. In response, the processing device identifies a security policy associated with an administrative account corresponding to the member account and evaluates the security policy against the security configuration change to determine compliance with the policy. If not in compliance, the processing device generates a change event indicating a repair to the security configuration of the cloud computing resource to bring the security configuration into compliance with the security policy.

Abstract: Techniques are described for managing cached data in a network environment. In one example, the techniques include receiving a client request for a data group, determining that a cached copy of the requested data group that is stored in the persistent cache storage is no longer valid relative to a current copy of the data group stored at a remote data source system, obtaining from the remote data source system information about differences between the cached copy and the current copy and instructions associated with the identified differences, modifying, by the configured server computing system, the cached copy to include the identified differences in accordance with the received instructions, and providing, by the configured server computing system, the modified cached copy of the requested data group to the client in response to the client request.

Abstract: A system, method, and computer-readable medium for point of presence (POP) based traffic surge detection and mitigation are provided. The system detects a traffic surge for a target group of resources directed at a source POP based on the target group's rank shifts and volume changes among recent time intervals. The system mitigates the detected traffic surge by identifying destination POPs with spare capacity and routing at least a portion of incoming requests for the target group of resources to the destination POPs in accordance with their spare capacities.

Abstract: Techniques are described for managing cached data in a network environment. In one example, the techniques include receiving a client request for a data group, determining that a cached copy of the requested data group that is stored in the persistent cache storage is no longer valid relative to a current copy of the data group stored at a remote data source system, obtaining from the remote data source system information about differences between the cached copy and the current copy and instructions associated with the identified differences, modifying, by the configured server computing system, the cached copy to include the identified differences in accordance with the received instructions, and providing, by the configured server computing system, the modified cached copy of the requested data group to the client in response to the client request.

Abstract: A system, method, and computer-readable medium for point of presence (POP) based traffic surge detection and mitigation are provided. The system detects a traffic surge for a target group of resources directed at a source POP based on the target group's rank shifts and volume changes among recent time intervals. The system mitigates the detected traffic surge by identifying destination POPs with spare capacity and routing at least a portion of incoming requests for the target group of resources to the destination POPs in accordance with their spare capacities.

Abstract: A system, method, and computer-readable medium for point of presence (POP) based traffic surge detection and mitigation are provided. The system detects a traffic surge for a target group of resources directed at a source POP based on the target group's rank shifts and volume changes among recent time intervals. The system mitigates the detected traffic surge by identifying destination POPs with spare capacity and routing at least a portion of incoming requests for the target group of resources to the destination POPs in accordance with their spare capacities.

Abstract: A system, method, and computer-readable medium for point of presence (POP) based traffic surge detection and mitigation are provided. The system detects a traffic surge for a target group of resources directed at a source POP based on the target group's rank shifts and volume changes among recent time intervals. The system mitigates the detected traffic surge by identifying destination POPs with spare capacity and routing at least a portion of incoming requests for the target group of resources to the destination POPs in accordance with their spare capacities.

Abstract: Techniques are described for managing cached data in a network environment. In one example, the techniques include receiving a client request for a data group, determining that a cached copy of the requested data group that is stored in the persistent cache storage is no longer valid relative to a current copy of the data group stored at a remote data source system, obtaining from the remote data source system information about differences between the cached copy and the current copy and instructions associated with the identified differences, modifying, by the configured server computing system, the cached copy to include the identified differences in accordance with the received instructions, and providing, by the configured server computing system, the modified cached copy of the requested data group to the client in response to the client request.

Abstract: Techniques are described for managing preloading of data for client computing systems. A client computing system may provide one or more persistent data storage caches on local storage, such as to support a particular software program executing on the client computing system (e.g., a Web browser program, with the persistent data storage cache designed to store browser cookies and other data for later access by the Web browser program). Additional data may be stored in such a persistent data storage cache by preloading those data groups before they are requested by the client computing system (e.g., based on interactions of a user of the client computing system with an executing program on the client computing system). Particular data groups to preload may be selected in various manners, including to provide a specified type of minimum functionality to a client computing system based on the preloaded data groups.

Abstract: Techniques are described for managing preloading of data for client computing systems. A client computing system may provide one or more persistent data storage caches on local storage, such as to support a particular software program executing on the client computing system (e.g., a Web browser program, with the persistent data storage cache designed to store browser cookies and other data for later access by the Web browser program). Additional data may be stored in such a persistent data storage cache by preloading those data groups before they are requested by the client computing system (e.g., based on interactions of a user of the client computing system with an executing program on the client computing system). Particular data groups to preload may be selected in various manners, including to provide a specified type of minimum functionality to a client computing system based on the preloaded data groups.

Abstract: A system, method and computer-readable medium for request routing based on prioritization and load information are provided. A client request processing a resource identifier for requested content transmits a DNS query to a content delivery network service provider. Based on a content provider identifier included in the DNS query, a receiving DNS nameserver determines a selection from a hierarchical organization of POPs and the relative capacity for a selected POP to process a subsequent request for resources. Based on the processing of the prioritization information and load information, the receiving DNS nameserver resolves the DNS query.

Abstract: Techniques are described for managing data transmissions between computing systems based at least in part on using a streaming transport protocol. At least some such data transmissions may be performed using HTTP, with one or more underlying transport protocols used to implement the HTTP-based data transmissions. HTTP-based data transmissions performed using an underlying streaming transport protocol, for example, may send data without performing error detection for reliability and without ensuring ordered delivery of the sent data. In addition, one or more HTTP-based data transmissions may be initiated using an underlying streaming transport protocol, but subsequent data transmissions may switch to using a different underlying transport protocol (e.g., TCP) or different transmission technique that is performed without using data streaming.

Abstract: Systems and methods for managing requesting routing functionality associated with resource requests for one or more resources associated with a content provider are provided. The request routing functionality can correspond to the processing of domain name service (“DNS”) requests for resources by computing devices and the resolution of the DNS requests by the identification of a network address of a computing device that will provide the requested resources. Based on the processing resource requests initiated by a client computing device, a CDN service provider can obtain performance information from client computing devices and correlate the performance information into a prioritized list for classes of client computing devices. The prioritized list can be utilized in resolving subsequent DNS queries.

Abstract: Systems and methods for managing requesting routing functionality associated with resource requests for one or more resources associated with a content provider are provided. The request routing functionality can correspond to the processing of domain name service (“DNS”) requests for resources by computing devices and the resolution of the DNS requests by the identification of a network address of a computing device that will provide the requested resources. Based on the processing resource requests initiated by a client computing device, a CDN service provider can obtain performance information from client computing devices and correlate the performance information into a prioritized list for classes of client computing devices. The prioritized list can be utilized in resolving subsequent DNS queries.

Abstract: Techniques are described for managing data transmissions between computing systems based at least in part on using a streaming transport protocol. At least some such data transmissions may be performed using HTTP, with one or more underlying transport protocols used to implement the HTTP-based data transmissions. HTTP-based data transmissions performed using an underlying streaming transport protocol, for example, may send data without performing error detection for reliability and without ensuring ordered delivery of the sent data. In addition, one or more HTTP-based data transmissions may be initiated using an underlying streaming transport protocol, but subsequent data transmissions may switch to using a different underlying transport protocol (e.g., TCP) or different transmission technique that is performed without using data streaming.

Abstract: Techniques are described for managing data transmissions between computing systems based at least in part on using a streaming transport protocol. At least some such data transmissions may be performed using HTTP, with one or more underlying transport protocols used to implement the HTTP-based data transmissions. HTTP-based data transmissions performed using an underlying streaming transport protocol, for example, may send data without performing error detection for reliability and without ensuring ordered delivery of the sent data. In addition, one or more HTTP-based data transmissions may be initiated using an underlying streaming transport protocol, but subsequent data transmissions may switch to using a different underlying transport protocol (e.g., TCP) or different transmission technique that is performed without using data streaming.