Once you have defined your goals and metrics, you need to use tools to collect and visualize data that will help you analyze your content's performance. Google Analytics is a free and powerful tool that allows you to track website traffic, behavior, and conversions. With it, you can measure how your content attracts, engages, and converts your audience, as well as identify sources, channels, and keywords that drive the most traffic and results. Google Search Console is another free tool that helps monitor and optimize website performance on Google search. It lets you check visibility, ranking, clicks, impressions, and errors. Social media platforms have their own analytics tools that let you measure reach, engagement, and impact on your audience. Content marketing platforms such as HubSpot, CoSchedule, and SEMrush can help manage a content calendar, optimize SEO, monitor competitors, and generate reports and insights on content performance.