Email Marketing UTM Builder & Tracking Guide
Turn ESP click counts into on-site attribution. Build email campaign URLs with consistent source, medium, campaign, and content values.
Build your tagged URL
UTM URL builder form
Need the full toolkit? Use our free UTM builder on the homepage.
Email marketing needs reliable UTMs
Email is a high-intent channel: subscribers already opted in. Without UTM tracking, ESP click rates tell you what happened in the inbox, not what happened on your site. Tagging every promotional CTA with source, medium=email, and a campaign slug connects sends to GA4 revenue, trials, and content engagement.
Standard email UTM pattern
https://example.com/offer?utm_source=newsletter&utm_medium=email&utm_campaign=march-newsletter&utm_content=hero-cta
Use utm_content to compare hero vs secondary links in the same template. Keep utm_campaign aligned with the send name in your ESP for operational clarity.
ESP-specific tips
Mailchimp, Klaviyo, Customer.io
Most platforms append UTMs automatically if configured—still audit output. Automated builders sometimes produce mixed case or spaces. Paste final URLs through our UTM generator when templates are custom HTML.
Transactional vs marketing
Tag marketing CTAs in receipts only when measuring upsells; avoid tagging password resets or legal notices.
Deliverability and link length
Long URLs wrap in some clients; use readable slugs rather than paragraphs of parameters. HTTPS is mandatory. Test on mobile where most email clicks occur.
Common email UTM mistakes
- Different campaign spelling per link in the same email
- Tagging unsubscribe or preference links
- Using URL shorteners that drop query strings
- Forgetting UTMs on plain-text version links
Measuring success in GA4
Filter Traffic acquisition by medium=email and campaign containing your send slug. Compare cohorts week over week. Cross-reference with GA4 UTM documentation on this site.
Related guides
Frequently Asked Questions
- Should every email link be tagged?
- Tag marketing CTAs driving measurable goals. Utility links (login, unsubscribe) typically stay untagged.
- Does Gmail strip UTM parameters?
- Gmail does not strip standard query parameters. Broken links usually come from wrapping or redirect tools that drop queries.
- What medium should email use?
- email is the conventional medium value in analytics channel definitions.