Agency Echelon
Reference

An independent review of an advertiser's media buying: prices paid against benchmarks, compliance with contract terms, fee and rebate transparency, and process quality. Audits are performed by firms such as Ebiquity and MediaSense and are often a contractual right.

Cite this entry: Agency Echelon. "Media Audit." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/media-audit/

Reference

A reference library for digital advertising, written and reviewed by the Agency Echelon team. Free to read. No advertising, no sponsorship, no affiliate links, no email gate.

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Reviewed September 23, 2026. Reference text is licensed CC BY 4.0. Privacy