Connecting the identifiers that represent the same person or household across devices, browsers, and channels: cookies, mobile advertising IDs, hashed emails, IP addresses, CTV device IDs. Identity graphs are maintained by LiveRamp, Experian, TransUnion, and others, and by the platforms internally. The quality of an identity graph determines the accuracy of cross-device Reach, Frequency, and Attribution.
Related terms
Used in The Signal
Cite this entry:
Agency Echelon. "Identity Resolution." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/identity-resolution/