What does this UTM checker validate?

It checks campaign URLs for required UTM parameters, duplicate keys, common UTM typos, blank values, mixed casing, spaces, underscores, encoding issues, and source or medium combinations that deserve review.

Does the UTM checker upload my URL?

No. The parser, validation rules, bulk audit, and corrected URL builder run locally in your browser.

Which UTM parameters are required?

For reliable Google Analytics campaign reporting, utm_source, utm_medium, and utm_campaign should be present and nonblank. utm_id and utm_source_platform are also useful for more complete GA4 reporting.

Free browser-based campaign QA

UTM Checker

Paste a campaign URL and catch missing tags, duplicate keys, typos, casing drift, encoding problems, and source or medium pairs that can fragment GA4 reports.

Local checkYour URL stays in this browser.

Campaign URL

Check a tagged link

GA4-ready rules

1Errors

7Warnings

1Click IDs

Clean values

Build a corrected URL

Source *Medium *Campaign *Campaign IDSource platformContent

18Fix

Result

Fix required issues before launch.

Corrected URL

https://example.com/pricing?ref=nav&gclid=abc123&utm_source=google&utm_medium=paid-social&utm_campaign=spring%2520launch&utm_content=hero-cta

error

Typo: utm_conent

Use utm_content instead.

warning

Mixed-case key: UTM_Source

Use utm_source as the canonical query key.

warning

Uppercase in utm_source

UTM values are case-sensitive in analytics reports. Lowercase avoids split rows.

warning

Uppercase in utm_medium

UTM values are case-sensitive in analytics reports. Lowercase avoids split rows.

warning

Space in utm_medium

Use hyphens instead of spaces for consistent reporting.

warning

Possible double encoding in utm_campaign

Decode once before publishing so spaces and symbols are not stored as encoded text.

warning

Uppercase in utm_content

UTM values are case-sensitive in analytics reports. Lowercase avoids split rows.

ParameterCurrent valueState

utm_sourceGooglereview

utm_mediumPaid Socialreview

utm_campaignspring%20launchreview

utm_idMissingclean

utm_source_platformMissingclean

utm_contentHero CTAreview

utm_termMissingclean

utm_creative_formatMissingclean

utm_marketing_tacticMissingclean

Validation map

The checks behind each result

The checker reads standard UTM fields, preserves non-UTM query parameters, and shows exactly why a link needs review before it goes into ads, email, QR codes, partner links, or launch documents.

UTM checking flow from campaign URL to validated parameters and fixed link

Required fields

utm_source, utm_medium, and utm_campaign should be present and nonblank.

Clean naming

Lowercase values and hyphen separators prevent one campaign from splitting rows.

Duplicate safety

Repeated UTM keys, casing variants, and common typos are flagged before launch.

GA4 context

Click IDs, unusual source or medium pairs, and optional GA4 fields get review notes.

FAQ

UTM Checker FAQ

What is a UTM checker?

A UTM checker parses a campaign URL and validates the UTM parameters that analytics tools use to classify source, medium, campaign, term, content, and related fields.

Does this replace a UTM builder?

It is built for QA after a link exists. The corrected URL box can normalize values and remove duplicate UTM keys, but missing campaign names still need human input.

Why do uppercase values matter?

Analytics treats values such as Google and google as separate strings, so a consistent lowercase convention keeps campaign reports cleaner.