● The short answer
UTM parameters are short tags added to the end of a link, such as ?utm_source=newsletter&utm_medium=email&utm_campaign=spring-sale, that tell analytics tools where a visit came from. Use them on every link you control outside your website: emails, social posts, QR codes, partner links and ads that are not auto-tagged. Keep names consistent or your reports fragment.
Key takeaways
- UTM parameters are link tags that tell analytics where a visit came from.
- Always use utm_source, utm_medium and utm_campaign, as Google recommends.
- Tag every external link you control, including QR codes and partner links, but never internal links.
How UTM parameters work
When someone clicks a tagged link, analytics tools like Google Analytics 4 read the tags and file the visit under the source, medium and campaign you named. Without tags, a visit from your newsletter might show up as "direct," and a QR code on a flyer might show up as nothing at all.
Google's documentation lists these parameters and says you should always use the first three:
| Parameter | What it means | Example |
|---|---|---|
| utm_source | Where the traffic comes from | newsletter, linkedin, chamber |
| utm_medium | The type of channel | email, social, paid-social, qr, referral |
| utm_campaign | The promotion or initiative | spring-tuneup-2026 |
| utm_content | Which creative or link | header-button, video-a |
| utm_term | Paid keyword | bike-repair |
| utm_id | Campaign ID | an ID that matches your ad platform |
| utm_source_platform | Platform that sent the traffic | the ad or email platform |
Google also lists utm_creative_format and utm_marketing_tactic, but notes they are not currently reported.
The how is where we come in.
What we walk through with you, for your business:
- How to use them, step by step
- Common mistakes
- Our take
Every business is different, so the plan is too. Tell us where you want to show up and we will show you what it takes.
Talk to usMore questions
Do UTM parameters affect SEO?
Not meaningfully if used correctly. Search engines generally treat UTM-tagged URLs as variations of the same page, and a canonical tag on the page points them to the clean version. Problems only arise when sites use UTMs on internal links, which creates duplicate URLs and corrupts analytics. Keep UTMs on external links only.
Do I need UTMs on Google Ads?
Usually not. Google Ads auto-tagging passes detailed click data to Google Analytics automatically when the accounts are linked. Manual UTMs are useful for ad platforms that do not integrate with GA4 as directly, such as some social and programmatic platforms, and for any link you place yourself.
Sources
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