Pro: visitor rules

In Visitors:

• Device: all, computers and tablets only, phones only (screens below 768 px);
• Logged-in users: everybody, only visitors who are not logged in, only logged-in users;
• Coming from: part of the address of the site the visit came from, one per line (google., facebook.com). Tick Reverse for everybody except them;
• Campaign: name=value lines like utm_campaign=sale; one is enough.

Origin and campaign are remembered for the whole visit, on every page. The browser decides, so the rules work with cached pages.

Without the licence a popup with visitor rules is paused, so that a message meant for some visitors is never shown to everyone; the screen of the popup has a button to remove the rules.