Abstract: A browser executing on a client device can detect external calls to remote servers generated by an online document. The browser can detect, in external content received in response to the external calls and for presentation in the online document, metadata describing domains that contributed to the delivery of the external content to the client device. The browser can aggregate, for each of the domains, a contribution of the domain to enable the presentation of the external content with the online document over a specified time period. The browser can present a visual representation of the contribution of each of at least some of the domains. The browser can receive, in response to interaction with the visual representation, a selection of one or more domains among the at least some domains. The browser can prevent the one or more domains from receiving subsequent external calls from the browser.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing a joint simulation for satisfying multiple different coexisting commitments to allocate digital resources. In one aspect, a method includes accessing logged data for prior allocations of digital resources, where the logged data includes at least one property associated with respective allocations of the digital resources. Different allocations of the digital resources included in the logged data are assigned to different ones of the multiple different commitments. For each commitment to allocate digital resources, an expected required resource amount that results in the commitment being allocated at least a specified minimum resource based on the allocations of digital resources of the logged data that were assigned to the multiple different commitments is determined.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing a joint simulation for satisfying multiple different coexisting commitments to allocate digital resources. In one aspect, a method includes accessing logged data for prior allocations of digital resources, where the logged data includes at least one property associated with respective allocations of the digital resources. Different allocations of the digital resources included in the logged data are assigned to different ones of the multiple different commitments. For each commitment to allocate digital resources, an expected required resource amount that results in the commitment being allocated at least a specified minimum resource based on the allocations of digital resources of the logged data that were assigned to the multiple different commitments is determined.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for allocating resources. In one aspect, a method includes receiving an advertisement request and identifying eligible advertisements that are eligible to be provided in response to the advertisement request. For each of the eligible advertisements an impression score corresponding to the advertisement request is received and a discount factor for each eligible advertisement is computed. The discount factor can be computed based on a function of previous impression scores for previous advertisement requests for which the eligible advertisement was provided. Using the impression scores and the discount factors for the eligible advertisements an allocation score is computed for each eligible advertisement. Using the allocation scores, an eligible advertisement is selected and provided in response to the request.