https://webkit.org/blog/12566/private-click-measurement-conversion-fraud-prevention-and-replacement-for-tracking-pixels/
Private Click Measurement: Conversion Fraud Prevention and Replacement For Tracking Pixels | WebKit
Welcome to the fourth feature update on Private Click Measurement, our proposed web standard for measuring advertising in a privacy-preserving way.
private click measurementfraud preventiontracking pixelsconversionreplacement
https://webkit.org/blog/11529/introducing-private-click-measurement-pcm/
Introducing Private Click Measurement, PCM | WebKit
This blog post covers a new feature called Private Click Measurement, or PCM, for measuring ad clicks across websites and from iOS apps to websites.
private click measurementintroducingpcmwebkit