Conversion rate optimization Articles — Atticus Li

Atticus Li

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Conversion rate optimization

Articles exploring conversion rate optimization through the lens of behavioral science and experimentation. Practical frameworks for growth leaders who measure in revenue, not vanity metrics.

3 articles

mobile optimization Mar 20, 2026 7 min read

The Practitioner's Guide to Mobile Form Simplification: How Removing Copy Lifted Conversions 15-20%

A step-by-step breakdown of how simplifying a mobile modal by removing explanatory text produced a 15-20% conversion lift, with a reusable framework for auditing your own mobile forms.

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The Practitioner's Guide to Mobile Form Simplification: How Removing Copy Lifted Conversions 15-20%

smallest effect worth shipping Apr 16, 2025 2 min read

Start With the Money: Defining the Smallest Effect Worth Shipping

How to define a smallest effect worth shipping (SEWS) using financial impact, a tight measurement window, and disciplined experiment design.

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Product team reviewing experiment metrics and financial impact thresholds on a dashboard

customer acquisition cost Jan 1, 1970 8 min read

How to Systematically Reduce Customer Acquisition Cost (CAC)

A step-by-step, experiment-driven framework to lower CAC by improving acquisition efficiency, fixing funnel leaks, and increasing customer lifetime value.

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Customer acquisition funnel with optimization points highlighted

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