What Are UTM Parameters?
UTM (Urchin Tracking Module) parameters are short text tags appended to the end of a URL. They allow analytics platforms — Google Analytics, Mixpanel, Plausible, and others — to identify exactly where a visitor came from and which campaign drove the click.
A tagged URL looks like this:
When someone clicks that link, your analytics tool reads the tags and attributes the visit to the correct source, medium, and campaign.
The Five UTM Parameters Explained
The platform or referrer sending the traffic (e.g. google, newsletter, linkedin).
The marketing channel or medium (e.g. cpc, email, social).
The name of the specific campaign or promotion (e.g. spring_sale, 2026_q1_launch).
The paid search keyword that triggered an ad impression.
Used to differentiate between creatives, CTAs, or link placements within the same campaign.
Best Practices for UTM Tagging in 2026
- 1
Use lowercase consistently. Most analytics tools treat
Emailandemailas separate sources — pick one convention and stick to it. - 2
Agree on a naming convention. Use underscores or hyphens, never spaces. Document your rules in a shared spreadsheet so every team member tags the same way.
- 3
Never tag internal links. UTM parameters are designed for external traffic only. Tagging internal navigation overwrites the original source attribution in your analytics.
- 4
Keep campaign names descriptive but short.
2026_q1_product_launchbeatscampaign123when you are reading reports six months later. - 5
Always URL-encode special characters. This tool handles encoding automatically, but if you build links by hand make sure ampersands, spaces, and other special characters are properly encoded.
Why Keep a Link History?
Marketers often generate dozens of UTM links per campaign across multiple channels. The built-in history feature above saves every link you copy to your browser's local storage — no account required and no data ever leaves your device. Use it to quickly retrieve a previous link or audit which URLs you have already distributed.
Frequently Asked Questions
Are UTM parameters case-sensitive?
Yes. Google Analytics and most other platforms treat Email and email as different values. Always use lowercase to keep your reports clean.
Do UTM parameters affect SEO?
No. Search engines ignore UTM query strings when indexing pages. They are purely an analytics tracking mechanism and have no impact on your search rankings.
How many UTM parameters should I use?
At minimum, use utm_source, utm_medium, and utm_campaign — these three give you a complete picture of where traffic originates. Add utm_term and utm_content only when you need to differentiate between keywords or creatives within the same campaign.
Can I use UTM tags on social media posts?
Absolutely. Tagging social links is one of the most common use cases. Use utm_source=twitter (or the platform name) and utm_medium=social so you can measure which social channels drive the most conversions.
Is my data safe with the history feature?
Yes. The link history is stored entirely in your browser's localStorage. Nothing is sent to a server and no cookies are set. Clearing your browser data or clicking "Clear History" removes everything instantly.