Attribution Reporting API
O que é Attribution Reporting API?
Attribution Reporting APIA Privacy Sandbox API in Chrome and Android that lets advertisers measure ad conversions across sites without cross-site identifiers, using browser-mediated, noise-injected event-level or aggregated reports.
The Attribution Reporting API (ARA) is the Privacy Sandbox mechanism for measuring ad-driven conversions without exposing cross-site identifiers. Sources (ad clicks or views) are registered on the publisher side; triggers (conversions) are registered on the advertiser side. The browser maintains the join between them locally and, at delayed and randomized intervals, sends one of two kinds of report. Event-level reports return a noisy, low-resolution mapping from a source event to a conversion event, suitable for click attribution. Aggregatable reports go through a separate Aggregation Service running in a trusted execution environment, which adds calibrated noise (differential privacy) before returning aggregate dashboards across many users. Both report types are designed to bound the cross-site information any caller can learn. ARA is one of the central pieces of the post-third-party-cookie measurement story and a focus of regulator attention (CMA, French CNIL, German DPAs). For ad-tech and measurement vendors, integrating ARA requires substantial backend changes for noise budgets, report aggregation, and trust-establishment with the Aggregation Service.
● Exemplos
- 01
An advertiser registers click-trigger and conversion-trigger callbacks; Chrome delivers event-level reports days later, with noise to limit user-level inference.
- 02
A measurement vendor stands up an Aggregation Service in a TEE so that ARA aggregatable reports can be processed into campaign-level dashboards.
● Perguntas frequentes
O que é Attribution Reporting API?
A Privacy Sandbox API in Chrome and Android that lets advertisers measure ad conversions across sites without cross-site identifiers, using browser-mediated, noise-injected event-level or aggregated reports. Pertence à categoria Privacidade e proteção de dados da cibersegurança.
O que significa Attribution Reporting API?
A Privacy Sandbox API in Chrome and Android that lets advertisers measure ad conversions across sites without cross-site identifiers, using browser-mediated, noise-injected event-level or aggregated reports.
Como funciona Attribution Reporting API?
The Attribution Reporting API (ARA) is the Privacy Sandbox mechanism for measuring ad-driven conversions without exposing cross-site identifiers. Sources (ad clicks or views) are registered on the publisher side; triggers (conversions) are registered on the advertiser side. The browser maintains the join between them locally and, at delayed and randomized intervals, sends one of two kinds of report. Event-level reports return a noisy, low-resolution mapping from a source event to a conversion event, suitable for click attribution. Aggregatable reports go through a separate Aggregation Service running in a trusted execution environment, which adds calibrated noise (differential privacy) before returning aggregate dashboards across many users. Both report types are designed to bound the cross-site information any caller can learn. ARA is one of the central pieces of the post-third-party-cookie measurement story and a focus of regulator attention (CMA, French CNIL, German DPAs). For ad-tech and measurement vendors, integrating ARA requires substantial backend changes for noise budgets, report aggregation, and trust-establishment with the Aggregation Service.
Como se defender contra Attribution Reporting API?
As defesas contra Attribution Reporting API costumam combinar controles técnicos e práticas operacionais, conforme detalhado na definição acima.
Quais são outros nomes para Attribution Reporting API?
Nomes alternativos comuns: ARA, Attribution Reporting.
● Termos relacionados
- privacy№ 960
Privacy Sandbox
Google's umbrella initiative for replacing third-party cookies and cross-site identifiers with privacy-preserving alternatives — Topics, Protected Audience (FLEDGE), Attribution Reporting, and on-device APIs — under heavy regulatory and competitor scrutiny.
- privacy№ 1286
Topics API
A Privacy Sandbox API in Chrome and Android that derives a small set of high-level interest topics from the user's recent browsing locally on the device, exposing them to participating sites instead of cross-site tracking identifiers.
- privacy№ 351
Privacidade diferencial
Quadro matemático que quantifica a perda de privacidade ao divulgar estatísticas ou treinar modelos, adicionando ruído calibrado de modo que a contribuição de qualquer indivíduo seja provavelmente limitada.
- privacy№ 1263
Cookie de terceiros
Cookie definido por um domínio diferente do que aparece na barra do navegador, historicamente usado para rastrear utilizadores entre sites.
- privacy№ 266
Rastreio entre sites
Prática de ligar a atividade de um mesmo utilizador em vários sites sem relação para construir um perfil comportamental duradouro.
- cloud-security№ 1300
Ambiente de Execução Confiável (TEE)
Contexto de execução seguro e isolado dentro do processador onde código e dados são protegidos em confidencialidade e integridade, mesmo face ao SO host e ao hipervisor.