A UTM (Urchin Tracking Module) parameter is a short text code appended to a URL to help marketers track the origin of website visitors. When a visitor clicks a tracking link, your analytics platform (such as Google Analytics) processes these tags to identify exactly which channel, ad, or campaign referred the traffic.

Yes, UTM parameters are strictly case-sensitive. Google Analytics captures "Social", "social", and "SOCIAL" as three completely different mediums. To avoid messy analytics reports, it is highly recommended to always use lowercase letters for all parameters.

No. You should never use UTM parameters on internal links (links going from one page on your site to another). Doing so immediately terminates the user's active session, starts a new session, and permanently deletes the original traffic source (e.g., Google Search or a paid ad) that brought the user to your site.

Our UTM Link Builder intelligently handles existing query parameters. If your URL already contains parameters (e.g., website.com/page?product_id=99), the tool automatically appends the UTM tags using an ampersand (&) rather than creating a second question mark, which would break the URL structure.

No. Your data is 100% private. The UTM Link Builder calculates and structures your tracking links locally inside your browser using JavaScript. No information is transmitted to our servers or any third-party database. Your campaign details remain completely confidential.

While five parameters exist, Google Analytics historically requires at least utm_source, utm_medium, and utm_campaign to group campaign traffic properly. However, it is highly recommended to fill out at least Source and Medium for basic categorization.

In GA4, you can find campaign traffic under Reports > Acquisition > Traffic acquisition. Add a secondary dimension like "Session source / medium" or "Session campaign" to view detailed performance metrics for your tagged URLs.

Both are fine, but consistency is critical. Underscores (e.g., spring_sale_2026) are highly readable in query strings. Avoid using spaces, as they will be URL-encoded to "%20", which makes URLs look long, cluttered, and unprofessional.

Tracking URLs containing multiple parameters can be very long. Once you have generated and copied your full URL from our builder, paste it into a reliable link shortener (like Bitly or TinyURL) to create a clean, short link suitable for social media captions, SMS, or print.

Yes, UTM links work for both web pages and deep links to mobile apps (such as Apple App Store or Google Play Store referral links), allowing you to measure which marketing channels are driving app installations.