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Marketing

UTM Parameter

UTM Tag | UTM Code

Portrait of Robert Klimant, co-founder of Roelu Studio
Robert KlimantCo-founder

What is UTM Parameter?

A UTM parameter is a tag added to the end of a URL that passes information about the click source to an analytics platform. The standard parameters are utm_source, utm_medium, utm_campaign, utm_term, and utm_content. UTMs were originally created by Urchin, the analytics company Google acquired to build what became Google Analytics. They are still the de facto standard for tracking campaign traffic across the web.

Why it matters

Without UTMs, your analytics lump everything into vague buckets — direct, referral, organic — and you have no idea which LinkedIn post, which newsletter, or which paid campaign actually produced the lead. With UTMs, every link tells the truth. The teams that take this seriously build a UTM convention, document it, and enforce it across marketing, sales, and partners. The teams that do not end up arguing about attribution in every QBR because the data is too dirty to trust. Five minutes of discipline at link-creation time saves quarters of confused dashboards down the line.

How it works

When marketing creates a campaign link, they append parameters to the URL — for example, ?utm_source=linkedin&utm_medium=social&utm_campaign=q4-launch. When a visitor clicks the link, the analytics platform — Google Analytics 4, PostHog, Mixpanel, whatever the team uses — reads those parameters and tags the session accordingly. Reports then slice traffic, leads, and revenue by source, medium, and campaign in any combination. A UTM builder spreadsheet or a tool like UTM.io enforces naming consistency across the team. The CRM picks up the same parameters and ties them to the lead record. Teams that get this right can finally answer the question every CEO eventually asks: which campaign actually drove that pipeline?

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