Free UTM Link Builder
Create properly tagged campaign URLs for Google Analytics in seconds. Track every traffic source, campaign, and medium with confidence.
Frequently Asked Questions
What are UTM parameters?
UTM parameters (Urchin Tracking Module) are tags added to URLs that tell Google Analytics where your traffic comes from. The five standard parameters are utm_source, utm_medium, utm_campaign, utm_term, and utm_content.
Which UTM parameters are required?
Google Analytics requires utm_source, utm_medium, and utm_campaign at minimum. utm_term (paid search keyword) and utm_content (A/B test variant or ad creative) are optional but useful for granular reporting.
What is the difference between utm_source and utm_medium?
utm_source identifies the specific website or platform (e.g., facebook, newsletter). utm_medium identifies the traffic type (e.g., social, email, cpc). Use lowercase consistently to avoid duplicate entries in GA4 reports.
Should I use UTMs for internal links on my own website?
No. Internal links with UTMs overwrite the original traffic source attribution in Google Analytics, breaking your marketing reports. Only use UTMs on links pointing to your site from external sources.
How long can a UTM link be?
There is no strict limit, but most browsers handle URLs up to 2,048 characters. For SMS marketing or printed QR codes, use a URL shortener after generating the UTM link to keep it manageable.
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