Mediamath, Inc.

What we know about this broker

Researched 2026-06-16. MediaMath (now owned by Infillion following its 2023 Chapter 11 bankruptcy asset sale) operates a CCPA opt-out page at the seed URL. The flow is a one-click cookie-drop opt-out — no form fields are required for the web path; the cookie signals the opt-out choice. For the email path ([email protected]), the user may optionally provide a mathtag.com UUID cookie or mobile advertising identifier to identify their records, but neither is required. GPC signals are also honoured. No email confirmation step exists for the web flow (confirmation is immediate via cookie). Authorized-agent acceptance is not documented in publicly available policy. Category is ad_tech; tier 3 because no public profile to rescan. The opt-out URL was connection-refused at time of research — mediamath.com itself was unreachable — so the URL is carried from the seed and DeleteMe guide; build_status remains researched based on third-party guide confirmation.