UTM (Urchin Tracking Module) parameters are tags appended to a URL that tell analytics platforms where your traffic is coming from. There are five standard UTM parameters: utm_source (the platform, e.g., “linkedin”), utm_medium (the channel type, e.g., “paid-social”), utm_campaign (the specific campaign), utm_content (the specific ad or link), and utm_term (the keyword for paid search). When a user clicks a UTM-tagged URL, these parameters are captured in your analytics.