Description of UTM sources

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UTM (Urchin Tracking Module) sources are an important part of tracking and analyzing marketing efforts in Mixpanel. Here's a description of UTM sources based on the provided knowledge:

UTM sources are parameters added to URLs to track the origin of traffic to a website. In Mixpanel, the utm_source parameter specifically identifies the source of the traffic, such as a search engine, newsletter, or social media platform Traffic Attribution.

Mixpanel's JavaScript library automatically tracks UTM parameters, including utm_source, as event properties. When a user first arrives on your site with UTM parameters, Mixpanel also stores these as user profile properties prefixed with "initial_", such as initial_utm_source Mixpanel SDKs: Javascript.

UTM sources can be used in various ways within Mixpanel:

1. Event Analysis: You can use UTM sources to segment and analyze user behavior based on their traffic source.

2. Attribution: Mixpanel's attribution feature allows you to attribute conversions to different UTM sources, helping you understand which marketing channels are most effective Attribution: Multi-touch segmentation in the user conversion journey.

3. User Profiling: The initial UTM source is stored as a user property, allowing you to segment users based on their original traffic source.

For server-side implementations, you'll need to manually extract and send UTM parameters to Mixpanel. Here's an example of how to do this in Python:

```

utm_keys = ["utm_source", "utm_medium", "utm_campaign", "utm_content", "utm_term"] utm_values = {key: request.args[key] for key in utm_keys if request.args.get(key)} properties.update(utm_values)

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