Measurement
UTM parameters
UTM parameters are query-string tags appended to a URL to record the campaign source, medium, name, term and content, so analytics can attribute a session to a specific effort.
What is UTM parameters?
UTM parameters are query-string tags appended to a URL to record the campaign source, medium, name, term and content, so analytics can attribute a session to a specific effort.
What it affects
They are the only reliable way to distinguish campaigns within a channel, and inconsistent naming is the most common reason channel reporting is unusable.
How it gets implemented
Applied with a documented naming convention, captured on first landing into a first-party store, and carried into the CRM so attribution survives a long cycle.
The common misunderstanding
They are visible in the URL and can be shared, cached and indexed. Parameterised URLs need canonical handling or they create duplicates.
Worth knowing because it comes up in almost every conversation about this.
Where this comes up in the work
It is part of Conversion Rate Optimization, and more specifically of Personalisation and targeting. Across the rest of the work it shows up in:
- Website Design and Development, where it sets the ceiling on making the design system small enough that people use it
- AI Automation and Workflows, because building the fallback for when the model returns something unusable depends on it
- AI Platform Optimization, in which it shows up as checking what an assistant says about your pricing, which is usually a version behind
- Agentic Commerce, where it decides measuring agent traffic that arrives looking like direct
What to check
Two questions that establish whether this is actually in order on a given site:
- Whether a change to it would be noticed, or discovered a quarter later
- Whether what the report says about it matches what a crawl of the site says
Common questions
How would we know UTM parameters is a problem?
By measuring it rather than by argument. Applied with a documented naming convention, captured on first landing into a first-party store, and carried into the CRM so attribution survives a long cycle.
Is UTM parameters just another name for something?
They are visible in the URL and can be shared, cached and indexed. Parameterised URLs need canonical handling or they create duplicates.
Does UTM parameters affect rankings directly?
Not on its own, and claims that it does are usually overselling. They are the only reliable way to distinguish campaigns within a channel, and inconsistent naming is the most common reason channel reporting is unusable. If this is the part you came for, Hydration goes further into it, and Impression share covers what sits either side.
How do you check UTM parameters on a site?
Applied with a documented naming convention, captured on first landing into a first-party store, and carried into the CRM so attribution survives a long cycle. Marketplace Marketing for SaaS and technology is the page to read before the kickoff call; Paid Social and Meta Ads for SaaS and technology is the one to read after it.
Who owns UTM parameters in a business?
Whoever is accountable for editing for sound-off viewing, which is still the default. Problems with this tend to persist because nobody is. Worth a look before committing budget: Lifecycle and Email in Birmingham, then Local SEO in Birmingham.
How much work is UTM parameters?
Less than people expect to check and sometimes more than they expect to fix. Applied with a documented naming convention, captured on first landing into a first-party store, and carried into the CRM so attribution survives a long cycle. People arriving here usually end up on llms.txt and AI crawler access, and often on Prompt share tracking after that.
Find out what is actually holding this back
Share the site and the target. We will say what we would check first and what we would leave alone.