Building a UTM Attribution Engine with Supabase Edge Functions (Open Source)

An open-source UTM attribution engine built with Supabase Edge Functions solves the problem of connecting ad clicks to payments. It uses three Edge Functions — track-visitor (captures UTM parameters and detects city via Cloudflare headers), razorpay-webhook (validates payments and matches them to visitors within 24 hours), and a matching algorithm that links payment data to UTM sources. The result is a dashboard showing which ad creatives drive the most revenue.