What is Lookalike?

Why Lookalike matters

Often called "LAL" or "LLA" by Meta advertisers. Always specify the seed data (what customers it is built from) and the percentage (1% = most similar, 10% = broadest).

Common mistakes with Lookalike

• 1

  Trusting platform attribution. Meta and Google overstate their contribution by 30-60% on most accounts.

• 2

  Scaling winning ad sets too fast. 30%/week is the safe ceiling — faster usually breaks the algorithm and learning resets.

• 3

  Ignoring creative fatigue. Most ads peak by week 2-3. If frequency exceeds 3, plan refresh.

How to improve Lookalike

• Set up a creative testing cadence: 8-12 fresh ad concepts per week, retire any ad with frequency > 3 or CTR drop > 30%.

• Use server-side conversions API on Meta and enhanced conversions on Google. Match rates 70%+ unlock algorithm performance.

• Build a 4-tier audience structure: cold prospecting, warm engagers, retargeting, post-purchase. Different creative, different targets.

Common questions about Lookalike