WARC charts YouTube's slowing ad growth
WARC Media's latest Platform Insights report shows YouTube's ad revenue growth decelerating from 14.7% in 2024 to 11.7% in 2025, with a forecast of 7.9% by 2027, putting TikTok on track to overtake it in 2028. Fospha data cited in the report suggests that last-click attribution underreports YouTube's revenue contribution by 15.9x.
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