Once you have your content goals, you need to choose the metrics that will help you evaluate your content performance. Metrics are quantitative indicators that show how your content is performing against your goals. There are many types of metrics, but they can be grouped into four categories: consumption, retention, action, and revenue. Consumption metrics measure how many people view, read, watch, or listen to your content, such as pageviews, sessions, time on page, bounce rate, or downloads. Retention metrics measure how well your content keeps your audience interested, engaged, and loyal, such as return visits, comments, shares, likes, or subscriptions. Action metrics measure how your content drives your audience to take a desired action, such as filling out a form, clicking a link, signing up for a trial, or making a purchase. Revenue metrics measure how your content contributes to your bottom line, such as sales, revenue, profit, or ROI.