How do I redirect users based on query parameters?

Use the Redirect by Query Parameter tool. Add one destination per value you want to route on — for example parameter utm_source with value twitter pointing to your Twitter landing page, another row for utm_source=email, and so on. Clicks that include a matching parameter land on the mapped URL; everything else falls through to the fallback destination you configure.

Rules are evaluated from top to bottom, and the first matching row wins. If two rows could match the same incoming click, reorder them so the one you want to take precedence sits higher in the list.

This is most useful when you don't control where the parameter gets stamped on the link — Google Ads ValueTrack tokens, affiliate networks that append a partner ID, or links embedded in a third-party system you can't easily edit. If you're sending the link yourself (your own emails, your own ads), using distinct URLs per channel is usually simpler than routing through a single link.