How do I build a high-quality lookalike?

Use a value-weighted source (top 25% of LTV customers or 90+ day repeat buyers), at least 1,000 matched users, refresh monthly, and start at 1% similarity.

Go deeper

Want the full playbook? Read Raise Google Ads Quality Score Faster With Smarter Automation — A low Quality Score drives up CPC and hurts visibility. Here’s what causes it, how automation speeds fixes, and the most common mistakes to avoid.