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The Real Reason Your Lookalike Audiences Stopped Working

It's Not Techy Editorial 3 min readJune 28, 2024

Signal degradation

Source audiences have less data post-iOS 14. Lookalikes built from weak sources produce weak audiences.

What outperforms

Broad with good creative + CAPI. Algorithm targeting now beats manual lookalike precision, especially on Meta.

When lookalikes still help

1-3% lookalikes of purchasers (narrow, high-quality). The 5-10% range became noise.

Keep reading — Paid Marketing

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