[null,null,[],[[["The Attribution Reporting API on Android is expanding to support app-to-app, app-to-web, web-to-app, and web-to-web attribution, requiring updates for ad techs, apps, and web views."],["Apps now register web sources and triggers via new API calls, enabling cross-surface attribution but necessitating careful handling of redirects and adherence to allowlist requirements for WebView integration."],["Browsers integrate by sending request headers that signal API support and trigger source/trigger registration, while ad techs utilize specific headers for initiating secondary API calls from WebViews."],["Privacy and security are addressed through rate limits, allowlisting for web source registration, and app-level user controls for data deletion, but ongoing considerations include browser measurement integration and destination validation."],["Transitional debugging reports offer more detailed attribution insights when advertising ID is available, with varying availability based on context and specific enabling conditions."]]],["The Attribution Reporting API measures ad conversions without third-party cookies, prioritizing user privacy. It tracks ad clicks/views (attribution source events) and subsequent conversions (attribution trigger data), matching them within the browser. Two report types exist: event-level, which offer limited conversion data with noise and delay for privacy, and summary reports, which aggregate data. The API, available in Chrome, employs techniques like partitioned identity, noising, and encryption to prevent cross-site user tracking while enabling conversion measurement. The API can work in third-party iframes, and between apps and the web.\n"]]
