This document introduces conversion rate optimization (CRO) and provides an evaluation framework for CRO. It discusses that CRO involves quantitative analysis, qualitative research, and testing on a client's website to improve conversions. A critical analysis framework is then presented covering six factors: simplicity, relevance, clutter, unique selling propositions, reassurance, and deadlines. Each factor explains how it can ease persuasion or ease of use and provides references to support optimizing for that factor. Finally, the document lists three tools used in CRO: quantitative analysis, qualitative research, and testing.