Topic

Identity resolution

Every post on the Index about identity resolution.

2 posts

Marketing & Advertising · November 7, 2026

Data partners with a stake in the answer can't be trusted

Jeff says Publicis's takeover of LiveRamp revives the grading-your-own-homework problem, since neutrality is what a data platform sells. Jeff adds that user-level data stitching was already fragile, and advises caution when choosing a data partner for next year.

By Jeff Greenfield

Marketing & Advertising · October 30, 2026

Apple's crackdown should push advertisers to aggregated measurement

Jeff argues that Apple's latest crackdown on fingerprinting and identity-stitching continues a decade-long direction away from user-level tracking. Teams still relying on stitched user paths should switch to aggregated, incremental measurement now.

By Jeff Greenfield