According to a new report by MediaMind, conventional audience measurement metrics that do not adjust for user cookie deletion overestimate the number of unique users by up to threefold. MediaMind’s method of measurement, the adjusted unique, divides the number of total impressions by the average frequency of cookie deletion. The study was based on 26 billion impressions served in the U.S. and Europe from January to December 2010.
More in Media
Apple’s Safari ad tech blocklist sends publishers back to IAB Tech Lab’s Trusted Server
What publishers once filed under someday now has a deadline, and Apple set it.
Media Briefing: As AI search shifts referrals, publishers revisit registration walls
As referral traffic declines, publishers are rethinking registration walls as a way to turn anonymous visitors into valuable known users.
SPUR publishes AI content tracking standard, pitches OpenAI and Google to join advisory board
Publishers are pushing for AI transparency with a new SPUR standard to track how AI tools use content, and inviting frontier AI labs to help.