About this plugin
PLX Lead Attribution gives every Contact Form 7 form on your site automatic marketing attribution, with no per-form setup required.
When a visitor lands on your site, the plugin reads the following from the URL and stores them in the browser for 30 days:
- utm_source
- utm_medium
- utm_campaign
- utm_term (also accepts utm_keyword or utm_content as fallbacks)
- A click ID ( gclid, clid, or ad_id )
If no UTM source is present, the referring domain is captured instead (or “Direct” if there is none), so every submission has a source even without a tagged link.
Five hidden fields are injected into every CF7 form automatically:
- utm-source
- utm-medium
- utm-campaign
- utm-term
- utm-clid
Whichever values were captured are filled into those fields just before the form is submitted, and the same values are appended to the CF7 notification email so they land straight in your inbox — no shortcodes, no manual field configuration, no third-party tracking service.
Requires Contact Form 7 to be installed and active. This plugin does nothing on its own — it only adds functionality to CF7 forms.
Privacy
This plugin stores UTM parameters, click IDs, and the referring domain in the visitor’s browser localStorage for up to 30 days, purely so the data survives from the landing page to whichever page the contact form is submitted on. No data is sent to any third-party or external service by this plugin. Captured values are only transmitted when a visitor submits a Contact Form 7 form, at which point they are included in that form’s own submission and notification email exactly like any other form field.