Welcome to the Q&A Forum

@peteboyd said in Capturing Source Dynamically for UTM Parameters:

Thanks in advance!

UTM (Urchin Tracking Module) parameters are tags that you can add to the end of a URL in order to track the effectiveness of your marketing campaigns. These parameters are used by Google Analytics to help you understand how users are interacting with your website and where they are coming from.

There are five different UTM parameters that you can use:

utm_source: This parameter specifies the source of the traffic, such as "google" or "Facebook".

utm_medium: This parameter specifies the medium of the traffic, such as "cpc" (cost-per-click) or "social".

utm_campaign: This parameter specifies the name of the campaign, such as "spring_sale" or "promotion".

utm_term: This parameter specifies the term or keywords used in the campaign, such as "shoes" or "dress".

utm_content: This parameter specifies the content of the ad, such as the headline or the call-to-action.

To capture the source dynamically for UTM parameters, you can use JavaScript to get the value of the document. referrer property. This property returns the URL of the page that is linked to the current page. You can then use this value to set the utm_source parameter dynamically.

For example, you might use the following code to set the utm_source parameter based on the referring URL:

Copy code
var utmSource = '';

if (document.referrer.indexOf('google') !== -1) {
utmSource = 'google';
} else if (document.referrer.indexOf('facebook') !== -1) {
utmSource = 'facebook';
}

// Add the utm_source parameter to the URL
var url = 'http://www.example.com?utm_source=' + utmSource;
This code will set the utm_source parameter to "google" if the user came to the page from a Google search or to "Facebook" if the user came to the page from Facebook. If the user came to the page from another source, the utm_source parameter will be left empty.

You can then use this modified URL in your marketing campaigns to track the effectiveness of your campaigns and understand where your traffic is coming from.

@peteboyd you can refer to this tutorial: https://www.growwithom.com/2020/06/16/track-dynamic-traffic-google-tag-manager/

Should meet your requirements perfectly - using GTM to replace a static value with the url in your UTM Source.