Free Tool

UTM Builder

Build a UTM-tagged campaign URL so GA4 (or any analytics tool) can attribute traffic to the exact campaign, source, and medium — not just "referral."

Why UTM parameters matter

Without UTM tags, analytics tools fall back to guessing: a click from a Google Ad often shows up as plain "google / organic," indistinguishable from someone who found you in a search result for free. UTM parameters make the source explicit, so paid and organic traffic never get blended into the same bucket by accident.

  • utm_source — where the traffic came from: google, facebook, a newsletter platform, a specific partner site.
  • utm_medium — the channel type: cpc, paid_social, email, referral. This is what separates "Google organic" from "Google Ads" in GA4's channel grouping.
  • utm_campaign — the specific campaign or promotion, so you can compare this quarter's launch against last quarter's without digging through raw URLs.
  • utm_term / utm_content — optional, but the difference-maker for A/B testing two ad variants or two keyword groups that otherwise share the same source, medium, and campaign.

Related tools and guides

Track every UTM campaign automatically with Claude

Connect GA4 to MCP Ads and ask Claude which campaigns, sources, and mediums are actually converting.