UTM parameters

UTM parameters are standardized URL query parameters you append to links so analytics tools can attribute the resulting visit to its campaign. The five classics (utm_source, utm_medium, utm_campaign, utm_term, utm_content) plus GA4's utm_id label where traffic came from, through what channel, and for which campaign.

#UTMs are labels you write; click IDs are keys platforms write

UTMs and click IDs ride the same URLs and do different jobs. A UTM is human-authored metadata: your naming, your taxonomy, readable in any tool that captures it. A click ID (gclid, fbclid) is a platform-generated key that only the issuing platform can decode. UTMs don't replace auto-tagging, and click IDs don't replace your labels; healthy stacks carry both. And because UTMs are hand-written, they fail like handwriting: case differences split one campaign into several rows, redirects strip them mid-flight, and free-text conventions drift until channel reporting turns to mush.

In practice: UTMs are the keys Buron's datasets group by. Cross-channel reporting lines campaigns up by exactly these strings, which is why their consistency is a data contract, not a formatting preference.

The parameter-by-parameter reference with the full failure-case registry is UTM parameters: the reference; the naming system that keeps values consistent is utm naming conventions. The platform-written counterpart is defined at Click ID (gclid / fbclid / wbraid), and the territory routes from Conversion tracking & signal quality.