# Profiling Profiling is tracking and analyzing visitor behavior to build detailed visitor profiles. This involves collecting data from website interactions to understand user preferences and customize content and marketing strategies accordingly. Profiles are dynamically updated as users interact with the site, allowing for more personalized and targeted marketing efforts over time. ## [External Profile Data](/umbraco-engage/developers/profiling/external-profile-data.md) In Umbraco Engage, you can integrate data from external systems with visitor profiles. Although Umbraco Engage does not provide built-in methods for adding this data, you can store it in any format. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.umbraco.com/umbraco-engage/developers/profiling.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.