Tracking, also known as monitoring or data collection, is the systematic recording of user behavior on a website or within a campaign. Among other things, it records which channel a user came from, which pages they visit, how long they stay, and whether they take an action.
Technically, tracking works through code snippets on the website, cookies, or server-side processes, for example. UTM parameters can also identify the source of a click. This makes it possible to trace the path from the first ad to the inquiry, measure conversions and click-through rates, and address weaknesses along the customer journey.
Important to note regarding tracking: The legal framework governing the collection of personal data is subject to strict rules and, in many cases, requires user consent.