*Contact emails* johni...@chromium.org, csharri...@chromium.org *Explainer* https://github.com/WICG/conversion-measurement-api/blob/main/event_attribution_reporting_clicks.md
*Design docs/spec* https://wicg.github.io/conversion-measurement-api/ *Summary* This is a new API for measuring conversions (e.g. purchases) and attributing them to clicked ads, without using cross-site persistent identifiers like third party cookies. *Link to “Intent to Prototype” blink-dev discussion* https://groups.google.com/a/chromium.org/d/msg/blink-dev/7B0ldtZR_68/GjLBu0n4DgAJ *Link to “Intent to Experiment” blink-dev discussion* https://groups.google.com/a/chromium.org/d/msg/blink-dev/Ib9-tDFitns/Sm9RXTNaBwAJ First extension: https://groups.google.com/a/chromium.org/g/blink-dev/c/C0P7ePjITJQ/m/ZYFmn30SDQAJ <https://groups.google.com/a/chromium.org/g/blink-dev/c/C0P7ePjITJQ/m/ZYFmn30SDQAJ> Second extension: https://groups.google.com/a/chromium.org/g/blink-dev/c/xCWP1ltlAgw/m/acwN0GIRBQAJ Third extension: https://groups.google.com/a/chromium.org/g/blink-dev/c/DmsUL3KHqMk/m/J2v3I_aEBAAJ *Goals for experimentation* We hope to see that the data produced by the API is comparable to existing cookie-based mechanisms. *Experimental timeline* We'd like to extend the origin trial for 3 milestones, continuing through Chrome 97 (95/96/97). The experiment has been running from Chrome 86-94. *Any risks when the experiment finishes?* This API is only additive and does not affect any existing state. Current conversion measurement solutions will work as expected with and without the API, so we don’t believe there are any risks. The Origin Trial tokens for Chrome 94 expired on October 12th. The API has been effectively disabled since then, so there will be a gap in availability. We have previously requested an exception to the .5% page load usage limit for Origin Trials. Page load usage is currently around .48% in October, and was at .5% on average in September. https://chromestatus.com/metrics/feature/timeline/popularity/3365 *Reason this experiment is being extended* We have two more non-google testers interested in experimenting with the API who have not yet been able to start experiments. The proposed API is fundamentally different in a number of ways from cookie-based mechanisms, which can make setting up experiments time consuming. Given the wide range of environments where this API will be used, we expect new testers to produce different learnings and feedback on the API, even without changes to the API. *Ongoing technical constraints* None. *Will this feature be supported on all five Blink platforms supported by Origin Trials (Windows, Mac, Linux, Chrome OS, and Android)?* Yes. *Link to entry on the feature dashboard* *https://chromestatus.com/feature/6412002824028160 <https://chromestatus.com/feature/6412002824028160>* -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/979272b9-a236-49ec-b333-cb700b82fcd3n%40chromium.org.
