吉儿正在为其企业 Stovesy 进行转化率优化 (CRO)。她知道，CRO 过程中的第一步是找出 Stovesy 网站和应用有待改善的方面。这可以通过定量和定性调查来实现。 关于 CRO 的定量调查包含以下哪种分析？

Data analysis is the core component of quantitative research in CRO. It involves examining numerical data from sources like website analytics, A/B tests, and heatmaps to identify patterns, trends, and areas of user friction. This data-driven approach helps Jill understand what is happening on her website and app, such as drop-off points in the conversion funnel or underperforming pages. User analysis, while related, is a broader term that can encompass both quantitative and qualitative methods, but "data analysis" specifically refers to the numerical examination. Brand analysis focuses on brand perception and equity, which is less directly about conversion optimization metrics. Competitor analysis examines what rivals are doing, which informs strategy but isn't a direct quantitative analysis of Stovesy's own site performance.