SourceTag WordPress Plugin

Tracks where your leads come from. Captures UTM parameters, click IDs, referrer data, and landing pages in your form submissions.

What it does

• First-click and last-click attribution
• 400-day cookie persistence via server-side cookies (gets around Safari's 7-day JS cookie limit)
• Works with Contact Form 7, Gravity Forms, WPForms, Elementor Forms, HubSpot Forms, and any HTML form
• You just need to add hidden fields to your forms — the plugin populates them

Install

1. Download the latest .zip from Releases
2. In WordPress: Plugins > Add New > Upload Plugin
3. Upload and activate
4. Go to Settings > SourceTag and paste your Script URL from the SourceTag dashboard

Full setup guide: sourcetag.io/docs/install-wordpress

How it works

The plugin loads the SourceTag tracking script in your <head> and re-sets the attribution cookie via PHP setcookie() on each page load. This extends cookie life from 7 days (Safari's JS limit) to 400 days.

There's also a REST endpoint (/wp-json/sourcetag/v1/set-cookie) that the script calls on a visitor's first visit to set the cookie before the PHP refresh kicks in.

Requirements

• WordPress 5.8+
• PHP 7.4+
• A SourceTag account (sourcetag.io)