白博士是 USTours.us 的营销顾问，他已指示其营销团队帮助扭转这个网站的颓势。网站的在线销量已跌至历史最低点，白博士认为这是因为着陆页不够人性化。作为 USTours.us 的营销主管，您必须判断他的观点是否正确。 您可以使用哪个工具来衡量着陆页的成效？

The Google Ads Landing Page Report is the most direct and effective tool for measuring the performance of landing pages specifically within the context of a Google Ads campaign. It provides data on how landing pages contribute to conversions and user experience for paid traffic, directly addressing the concern about declining online sales. The Chrome User Experience Report (CrUX) and Google Web Vitals provide valuable data on overall website performance and user experience metrics (like loading speed), but they are broader in scope and don't specifically focus on the conversion performance of individual landing pages from an advertising perspective. While important for site health, they wouldn't be the primary tool to diagnose landing page effectiveness for sales. Chrome Developer Tools are for debugging and analyzing website code and performance in real-time by developers, not for high-level marketing performance measurement.