https://webkit.org/blog/8943/privacy-preserving-ad-click-attribution-for-the-web/ https://webkit.org/blog/8943/privacy-preserving-ad-click-att... This is the s

https://webkit.org/blog/8943/privacy-preserving-ad-click-attribution-for-the-web/ https://webkit.org/blog/8943/privacy-preserving-ad-click-att... This is the specific thing I'm referring to.