Question 1

What is a UTM tag?

Accepted Answer

A UTM tag is one of five standard URL parameters (utm_source, utm_medium, utm_campaign, utm_term, utm_content) invented by Urchin, the company that became Google Analytics. Added to the end of a link, they identify exactly which campaign, channel, and ad drove each visit. The destination page ignores them, but analytics tools read them to build traffic reports.

Question 2

What is the difference between utm_source and utm_medium?

Accepted Answer

The source is the specific place the link lives, like google, facebook, or your newsletter name. The medium is the kind of channel it represents, like cpc for paid search, email, or paid_social. Together they answer two different questions: where did the click happen, and what type of marketing was it?

Question 3

Are UTM parameters case-sensitive?

Accepted Answer

Yes. Analytics tools treat Google, google, and GOOGLE as three different sources, which splits your data across separate rows. The safest convention is to always use lowercase, with hyphens or underscores instead of spaces, and to keep a shared spreadsheet of the exact values your team uses.

Question 4

Do UTM tags affect SEO?

Accepted Answer

Not directly. Search engines canonicalize tagged URLs to the clean version, so rankings are unaffected. Two cautions: never add UTM tags to internal links on your own site, since that resets the visit attribution in analytics, and keep tagged URLs out of your sitemap so search engines index only the clean URL.

Question 5

Where do I see UTM data in Google Analytics 4?

Accepted Answer

Open Reports, then Acquisition, then Traffic acquisition to see sessions grouped by session source/medium. You can also add campaign, term, and content as secondary dimensions, or build a free-form exploration. The values in those reports are exactly what you typed into the UTM fields, which is why consistent naming matters.

Question 6

Should I add UTM tags to internal links?

Accepted Answer

No. When a visitor clicks an internal link that carries UTM parameters, analytics starts a new session attributed to that fake campaign, overwriting the real source that brought them to your site. Use UTM tags only on external channels: ads, emails, social posts, QR codes, and partner sites.

Question 7

Is this the same as the Google Analytics Campaign URL Builder?

Accepted Answer

It produces exactly the same standard UTM URL, since the parameter format is universal. The difference is workflow: from here you can also shorten the tagged link with Linkly, which hides the long parameter string from the person clicking, keeps the tags intact, and adds click counting on top of your analytics.

Question 8

Can I shorten a link that has UTM parameters?

Accepted Answer

Yes. A short link that redirects to your tagged URL carries every parameter through the redirect, so analytics still receives the full UTM data. This is the usual fix for tagged URLs being long and ugly in social bios, SMS, and print, where a clean short link gets noticeably more clicks.

Parameter	What it tells you	Example values
`utm_source`Required	Where the traffic comes from: the website, platform, or newsletter that hosts your link.	google, newsletter, tiktok
`utm_medium`Required	The marketing channel type, such as paid search, email, or social.	cpc, email, paid_social
`utm_campaign`Required	The specific campaign, promotion, or launch the link belongs to.	spring_sale, launch_2026
`utm_term`Optional	The paid search keyword you bid on. Mostly used for manual Google Ads tagging.	running_shoes
`utm_content`Optional	Which specific ad, button, or link variant was clicked. Useful for A/B tests.	hero_banner, logo_link

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