吉兒正在為「易捷爐具」企業處理轉換率最佳化 (CRO) 作業，她瞭解 CRO 程序的第一個步驟是找出該企業網站和應用程式中的商機，這項工作可以透過量性和質性研究來完成。 與 CRO 相關的量性研究包含下列哪一項深入分析？

Data insights are central to quantitative research in CRO because they involve analyzing numerical data from website analytics, A/B tests, heatmaps, and user recordings to identify patterns, bottlenecks, and areas for improvement. This data-driven approach allows Jill to objectively pinpoint specific pages or user flows that are underperforming. User insights are qualitative, focusing on user motivations and behaviors through surveys or interviews. Competitive insights analyze competitor strategies, which is not directly quantitative research on one's own site. Brand insights relate to brand perception and recognition, also not a core quantitative CRO activity.