Monthly Active Users (MAU) is a metric that tracks the number of unique users who visit a web site or platform over some period of time. It is used as a benchmark for determining the performance, growth, or popularity of online sites.The MAU metric is important because it provides insights into how many people are using a particular web site or platform on a monthly basis. This information can be used to assess the overall health and growth of an online community. Additionally, MAU can be used to compare different online platforms against each other in terms of their user base size and engagement levels.While MAU is generally considered to be a valuable metric, it should not be viewed as the sole indicator of success for an online community. Other factors such as retention rates, average session duration, and content engagement levels are also important measures of success.