What UTM parameters are
UTM parameters are tags added to the end of a link, such as ?utm_source=newsletter&utm_medium=email&utm_campaign=autumn-2026. Visitors barely notice them, but Google Analytics 4 uses them to know where each visitor came from. Without tags, newsletter visits often show up as "direct", and visits from a flyer QR code can't be identified at all.
The five parameters and when to use them
- utm_source: the source, e.g. facebook, instagram, newsletter, flyer.
- utm_medium: the type of channel, e.g. social, email, qr, cpc (paid click).
- utm_campaign: the promotion name, e.g. autumn-2026 or salon-opening.
- utm_term: the keyword, mostly for paid ads outside Google.
- utm_content: tells apart two links in the same campaign, e.g. top-button and bottom-button.
Rules for clean Analytics data
- Always use lowercase. Analytics treats "Facebook" and "facebook" as two different sources.
- Use the same names every time. Agree on a list (e.g. always "newsletter", never "mail" or "bulletin") and stick to it.
- Don't tag internal links on your own website. It breaks the session and distorts your reports.
- Google Ads doesn't need UTMs. Turn on auto-tagging in Google Ads and link it to Analytics. Manual tags are for Facebook, Instagram, newsletters, print and partners.
Where to see the results
In Google Analytics 4, open Reports → Acquisition → Traffic acquisition and choose the dimension "Session source / medium" or "Session campaign". If you have key events set up (enquiry, call, WhatsApp click), you will also see how many enquiries each campaign brought.
Frequently asked questions
Do UTM parameters affect Google rankings?
Do I need UTMs for Google Ads?
The link is too long for a flyer. What now?
Does the tool send my links anywhere?
Updated: November 2026 · Supremio Digital, Zagreb