UTM: Complete Guide

September 15, 2025

Why read: you'll learn how to properly set UTM tags for any campaign, avoid common mistakes, and get ready-made templates for main channels. At the end — FAQ and checklist.

Table of Contents

What are UTM and why
UTM parameters: source/medium/campaign/term/content
Integration with GA4: attribution and reports
Taxonomy and naming
Templates for channels (Google/Meta/VK/Telegram/Email)
Examples and ready links
Common mistakes
FAQ and checklist

1) What are UTM and why

UTM tags are URL parameters that help analytics systems (GA4, etc.) understand the traffic source, channel type, campaign, and creative. This is the foundation for correct attribution and channel performance comparison.

2) Basic UTM parameters

utm_source — source (e.g., google, facebook, vk, telegram).
utm_medium — channel type (cpc, paid_social, display, email, referral, etc.).
utm_campaign — campaign (promotion/product/period name: y2025q3_launch_widget).
utm_term — keyword (mostly in search advertising).
utm_content — creative/banner/button variant (banner_a_red, cta_top).

Additional fields (optional): utm_id, utm_source_platform, utm_creative_format, utm_marketing_tactic — GA4 can read them in extended reports.

3) GA4: how it's read

GA4 uses UTM for session_source/medium, first_user_source/medium, campaign and other fields. If Google Ads auto-tagging (gclid) is enabled, it takes priority, but UTMs are still useful for cross-platform consistency and BI.

Maintain consistent case (lowercase, Latin) to avoid channel duplicates.
Don't mix channels in utm_medium (e.g., cpc ≠ paid_social).
Check that redirects don't strip parameters (especially in mobile links/intermediaries).

4) Taxonomy and naming

Campaign template: y2025q3_{product|offer}_{goal|event}
Case: lowercase only (lowercase), separator — hyphen (-).
No spaces, transliterate Cyrillic: осень‑распродажа → osen-rasprodazha.
Medium dictionary: cpc, paid_social, display, email, referral, organic.

5) Channel templates

Quick recommendations for popular sources:

Google Ads (search/KMS): utm_source=google, utm_medium=cpc, utm_campaign=..., utm_term={keyword}, utm_content={adgroup}. Keep gclid auto-tagging enabled.
Facebook/Meta: utm_source=facebook, utm_medium=paid_social, utm_campaign=..., utm_content={placement}_{creative}.
VK: utm_source=vk, utm_medium=paid_social, utm_campaign=..., utm_content={ad_id}.
Telegram: utm_source=telegram, utm_medium=social (or paid_social for ads), utm_campaign=..., utm_content=post_{n}|story.
Email: utm_source=newsletter (or ESP), utm_medium=email, utm_campaign=..., utm_content=btn_{variant}.

6) Examples

GET https://example.com/landing? utm_source=google& utm_medium=cpc& utm_campaign=y2025q3_launch_widget& utm_term=buy+widget& utm_content=banner_a

GET https://example.com/landing? utm_source=facebook& utm_medium=paid_social& utm_campaign=y2025q3_launch_widget& utm_content=feed_video_a

It's most convenient to build links in our constructor: Open UTM Builder

7) Common mistakes

Mixing utm_medium (cpc vs paid_social), different cases (CPC vs cpc).
Spaces/Cyrillic in values, lack of URL encoding.
Different names for the same campaign across multiple systems.
Loss of UTMs on redirects (opaque intermediaries, short links without parameter transfer).

8) FAQ and checklist

What's the minimum set of parameters?

source, medium, campaign — enough for basic attribution; term/content — as needed.

Are UTMs needed with gclid enabled?

Yes, for consistency between channels and in third-party reports/BI. gclid doesn't interfere with UTMs.

How to check correctness?

Click link → watch traffic/tags in GA4 DebugView/Realtime in real-time. Check redirects.

Where to store taxonomy?

In a shared reference (Notion/Sheet/Git) where medium dictionaries, naming rules, and campaign archives are fixed.

Pre-launch checklist

Case/encoding, unified dictionaries.
Same utm_campaign across all campaign ads.
Redirect checks, final click-test.

Updated: 15.09.2025 • Category: Learning