What are UTM parameters and why are they important?

UTM (Urchin Tracking Module) parameters are 5 snippets of query text added to the end of a URL. They help Google Analytics and attribution tools track exactly where visitors, clicks, and conversions come from.

What is the difference between utm_source and utm_medium?

utm_source identifies the platform sending traffic (e.g. google, facebook, newsletter), while utm_medium describes the marketing channel or transmission type (e.g. cpc, email, paid-social, organic).

Should UTM parameters be lowercase?

Yes! Google Analytics is strictly case-sensitive. If you use 'Facebook' in one link and 'facebook' in another, GA4 will treat them as two completely separate traffic sources.

Tools/UTM Link Builder

TOOL 5 — CAMPAIGN ATTRIBUTION BUILDERGoogle Analytics 4 Ready

Flawless tracking links, pristine analytics reporting.

Generate clean, lowercase tracking URLs for Google Ads, Facebook, LinkedIn, newsletters, and influencer campaigns. Prevents GA4 fragmentation with auto-sanitization and instant CSV export.

Automatic case-sensitivity hygiene·100% Client-side privacy·CSV Media Plan export

UTM PARAMETER ENGINE READY

Fill in destination URL & select campaign parameters

Google Ads Text Checker

Campaign Parameters

Google Analytics 4 & Ad Platform Compliant

Quick Channel Presets

Website Destination URL *

Campaign Source (utm_source) *

Campaign Medium (utm_medium) *

Campaign Name (utm_campaign) *

Campaign Term (utm_term) Optional

Campaign Content (utm_content) Optional

Force lowercase for clean GA4 reports

Spaces become:

Parameter Breakdown:

source: googlemedium: cpccampaign: app_launch_2026

More Marketing Tools:

→ Google Ads Text & RSA Checker → WhatsApp Link & QR Generator

BEST PRACTICE TAXONOMY

The 5 essential UTM
parameters explained.

Standardizing your UTM naming convention prevents duplicate rows in Google Analytics 4 and ensures accurate cross-channel attribution.

Parameter	Required?	Purpose & Best Practice Example
utm_source	Yes	Identifies the platform sending traffic (e.g. `google`, `facebook`, `newsletter`).
utm_medium	Yes	The marketing vehicle or channel type (e.g. `cpc`, `email`, `paid-social`).
utm_campaign	Yes	The specific marketing promotion or launch name (e.g. `black-friday-2026`).
utm_term	Optional	Paid search keywords or targeted audience tags (e.g. `creator-tools`).
utm_content	Optional	Differentiates ads or links pointing to the same URL (e.g. `hero-cta-btn` vs `footer-link`).

FREQUENTLY ASKED QUESTIONS

Campaign Tracking & Attribution FAQs

GA4 Compatibility

Does this tool work with GA4?

Yes. Google Analytics 4 automatically recognizes standard UTM tags (source, medium, campaign, term, content) and populates Traffic Acquisition reports.

Hyphens vs Underscores

Should I use hyphens or underscores?

Hyphens (summer-sale) are recommended by Google because search engines treat hyphens as word separators. Keep it consistent across your team.

Internal Links

Should I use UTM tags on my own website?

Never use UTM parameters on internal navigation links between pages on your own website. Doing so resets the visitor's session and corrupts original attribution data.

Privacy

Are my URLs stored on a server?

No. All link generation, history storage, and CSV exports happen strictly inside your browser memory and local storage. No data is sent to Calkora servers.