What is UTM tracking and how do I use it?

Updated October 2026 · How we answer

Short answerUTM tracking adds short tags to your links, such as utm_source and utm_campaign, so your analytics tool can show which channel, email or ad brought each visitor and lead.

What the tags do

A UTM link is your normal web address with extra text added at the end, such as utm_source=newsletter and utm_campaign=spring-offer. When someone clicks it, analytics tools record those values with the visit. You can see whether a lead came from an email, a social post or a paid ad.

The common tags are source, medium, campaign, term and content. You do not need all five. Source and campaign are enough for most small businesses to start.

  • utm_source: where the link is placed, like a newsletter
  • utm_medium: the type, like email or social
  • utm_campaign: the name of the promotion
  • Use lowercase and consistent naming

Keep your naming consistent

Pick a naming system and write it down. If one link says Facebook and another says facebook, your reports may split the data. Build links with a free UTM builder or a spreadsheet template so the format stays the same.

Check your analytics reports every few weeks to confirm the tags appear. Missing tags usually mean a link was typed by hand or changed by a redirect. Once tagging is in place, compare a few months of tagged traffic to see which channel brings the leads you actually close, not just the most visits.

Common mistakes

  • Using different spellings for the same source, which splits your reports.
  • Tagging internal links, which can overwrite the original traffic source.
  • Creating tags without a plan for what each one means.
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