Modern WordPress attribution tracking
Attribution Tracker
Records where every visitor came from and attaches it to the form they submit, so a lead in your inbox arrives with its campaign on it.
Free on WordPress.org. Pro adds what is listed below, billed once a year at $29 for one site.

Support for Attribution Tracker, by email, answered by the person who wrote it. Licence holders get a reply within one business day and usually sooner. Using the free version? Write anyway.
Worth checking first
- Open Attribution Tracker → Status in wp-admin. It reports what is running and what every feature is doing.
- Load the page in question and open the debug panel, which names what was captured, what matched and why.
- Check the reference for this plugin: every setting, and every action and filter it documents.
Ask us
The form arrives with Attribution Tracker already selected. Everything except the site address is needed for the first reply to be an answer rather than a question.
Prefer plain email? [email protected] reaches the same place. A security problem goes to [email protected] instead, and never in public.