Private Click Measurement (PCM)

[kiding]

Implementation Status

• Safari
  • TP: 82+ (flagged)¹, 118+ (on-by-default)
  • macOS: 13.0+ (flagged)¹, 14.1+ (beta, on-by-default)²
  • iOS: 13.0+ (flagged)¹, 14.5+ (beta, on-by-default)

References

• https://webkit.org/blog/11529
• https://github.com/privacycg/private-click-measurement

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¹ Flagged under the previously proposed name, "Ad Click Attribution."
² Tested with Safari 14.1 for macOS Catalina beta 1.

[Schweinepriester]

https://webkit.org/blog/11648/new-webkit-features-in-safari-14-1/

Private Click Measurement

This release features Private Click Measurement -- a proposed web standard that enables advertisers to measure the effectiveness of click-through ad campaigns in a privacy-preserving way. This new technology is part of a larger effort to remove cross-site tracking from the web and provide privacy-preserving alternatives where needed.

Looks like it indeed shipped with 14.1.