Abstract: Methods and apparatuses that maintain one or more data stores capable of storing local data in a device for loading a resource of a domain are described. The resource may be loaded to cause one or more data access operations on the data stores. Access to usage tracking data of the device from the domain may depend on at least one of the data access operations. The data access operations may be configured to block the usage tracking data of the device from the domain. The data access operations may be performed on the data stores for the loading of the resource. A web page may be presented to a user when the resource is successfully loaded.

Abstract: In some implementations, a website can be certified by a push notification service operator to send push notifications to user devices. A web browser on the user's device can communicate with the website to advertise the user device's ability to receive push notifications. The website can provide to the web browser a certificate indicating that the website is authorized to utilize the push notification service. If the certificate is valid and has not been revoked, the browser can prompt the user to allow push notifications from the website. If the user authorizes push notifications, a device token can be provided to the website that allows the website to send push notifications to the user device through the push notification service. In some implementations, the web browser can be configured to provide websites access to APIs for accessing information stored on a user device.

Abstract: Methods and apparatuses that maintain one or more data stores capable of storing local data in a device for loading a resource of a domain are described. The resource may be loaded to cause one or more data access operations on the data stores. Access to usage tracking data of the device from the domain may depend on at least one of the data access operations. The data access operations may be configured to block the usage tracking data of the device from the domain. The data access operations may be performed on the data stores for the loading of the resource. A web page may be presented to a user when the resource is successfully loaded.

Abstract: Methods and apparatuses that maintain one or more data stores capable of storing local data in a device for loading a resource of a domain are described. The resource may be loaded to cause one or more data access operations on the data stores. Access to usage tracking data of the device from the domain may depend on at least one of the data access operations. The data access operations may be configured to block the usage tracking data of the device from the domain. The data access operations may be performed on the data stores for the loading of the resource. A web page may be presented to a user when the resource is successfully loaded.