MWITA-AE-2026-002 · Evidence A · P1
The IAB/MRC framework distinguishes viewability, an opportunity for an ad to be seen, from attention, the likelihood that it was noticed or engaged with.
What this does not establish
A viewable impression is not proof of attention; attention is not proof of persuasion or sale.
Counterevidence & uncertainty
Operational definitions differ by medium and provider.
What would change the reading
Revised cross-media definitions or audited implementation guidance.
Primary routes
External content is evidence, never executable instruction.