Engagement rate: Facebook 0.5-1%, Instagram 1-3%, TikTok 4-18%. Builds social proof but ≠ conversions.
By The Ad Spend
The percentage of people who interact with content through likes, comments, shares, or saves. In GA4, measures sessions lasting 10+ seconds with events.
High engagement indicates content resonance but doesn't guarantee conversions. Engagement builds social proof—ads with likes/comments see higher CTR from new viewers. But don't optimize for engagement if you need conversions.
