Contact emails
[email protected]<mailto:[email protected]>, [email protected]
<mailto:[email protected]>
Explainer
privacy-preserving-ads/Parakeet.md at main * WICG/privacy-preserving-ads * 
GitHub<https://github.com/WICG/privacy-preserving-ads/blob/main/Parakeet.md>

Specification
None
Summary
PARAKEET is a set of APIs which leverage a service for anonymizing ad requests 
and user interest inference support. It provides significant privacy and 
control improvements for the user over today's ad serving flows, including 
strong privacy contracts based on differential privacy and ad request 
anonymization as well as user transparency and control of ad interest 
membership and granularity. While providing those privacy improvements, it 
continues to enable monetization that leverages both site context and ad 
interest information in a unified request.

Blink component
Blink
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink>
Motivation
The motivation for this work is described in the explainer at 
https://github.com/WICG/privacy-preserving-ads/blob/main/Parakeet.md. In short, 
PARAKEET is designed to enable more privacy-preserving web advertising than 
exists today while simultaneously enabling the web ecosystem to continue 
functioning.

The TURTLEDOVE/FLEDGE effort is currently attempting to solve approximately the 
same use case with a different set of primitives. That effort requires the ad 
ecosystem to significantly redesign large portions of their current ad serving 
flow due to the on-device auction approach. PARAKEET's approach instead 
leverages a request anonymization step using a browser-trusted service which 
enables non-individually identifying context from both the site the user is on 
and cross-site interests to be sent as part of ad requests. That in turn 
enables the ecosystem to retain more of their existing functionality while 
still preventing cross-site profile building of individuals. Where reasonable, 
PARAKEET aims to align API semantics with TURTLEDOVE/FLEDGE.

Initial public proposal
privacy-preserving-ads/Parakeet.md at main * WICG/privacy-preserving-ads * 
GitHub<https://github.com/WICG/privacy-preserving-ads/blob/main/Parakeet.md>
TAG review
None
TAG review status
Not yet requested

Risks
Interoperability and Compatibility
The PARAKEET proposal has been influenced by a multitude of discussions with 
interested stakeholders. The Microsoft Edge team is the primary proponent of 
the proposal. The Google Chrome team has been focused on the FLEDGE proposal. 
Significant questions remain about the achievable privacy and monetization 
properties of the various proposals; having an implementation of PARAKEET will 
allow the ad ecosystem and other interested stakeholders to be better able to 
make direct comparisons between PARAKEET, FLEDGE, and other proposals. A shared 
goal is to align on a single set of APIs, but hands-on experience with the 
different approaches is critical to reach the right balance.
The proposal has evolved and will continue to evolve based on stakeholder 
feedback to better accommodate important uses cases in privacy preserving 
manners.

Current issues and updates are tracked at Issues * WICG/privacy-preserving-ads 
* GitHub<https://github.com/WICG/privacy-preserving-ads/issues>
Gecko: No signal
WebKit: No signal
Web developers: Limited signal about ultimate support. Various publisher and ad 
tech providers are engaging and planning to participate in experiments.


Debuggability
DevTools console logging will be added as appropriate for failures and 
soft-errors when calling newly exposed/modified Javascript APIs. Appropriate 
errors will be used to reject promises during error conditions.

Is this feature fully tested by 
web-platform-tests<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>?
No

Flag name
'Parakeet'

Requires code in //chrome?
True - May require //chrome/browser code for implementation

Estimated milestones

Link to entry on the Chrome Platform Status
https://www.chromestatus.com/feature/5615210531389440

This intent message was generated by Chrome Platform 
Status<https://www.chromestatus.com/>.
Business motivation seems odd in an I2P. Instead of copying and pasting from 
the explainer, why not a single line referring to the explainer for motivation?

Sent from Outlook<http://aka.ms/weboutlook>

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