Campaign Tracking & UTM Systems

Recipes for campaign URLs, UTM parameters, traffic splitting, QR tracking, attribution labels, and cleaner marketing measurement.

UTMsCampaignsA/B testing

Recipes

Available recipes

Recipes in this chapter are added over time. Each one includes the business problem, code pattern, explanation, measurement logic, and mistakes to avoid.

Recipe 001

Split one campaign URL between two landing pages and track variants with UTMs

A JavaScript recipe for splitting one public campaign URL between two destinations and tagging each variant with UTM parameters.

JavaScript Beginner UTMsA/B testingCloudflare Workers