{"page":"/blog/viewability-attention-brand-safety","modified":"2026-11-10","license":"https://creativecommons.org/licenses/by/4.0/","columns":["Measure","Formula","MRC worked example: 1,000 rendered impressions"],"rows":[["Measured rate","(viewable + not viewable) ÷ rendered","(300 + 200) ÷ 1,000 = 50%"],["Viewable rate","viewable ÷ (viewable + not viewable)","300 ÷ 500 = 60%"],["Impression distribution","each bucket ÷ rendered","30% viewable, 20% not viewable, 50% undetermined"]],"sourceUrls":[[],[],[]]}