The three core UTMs
- utm_source — where traffic comes from (newsletter, twitter, partner).
- utm_medium — the channel type (email, social, cpc).
- utm_campaign — the promotion name (spring_sale, launch).
Keep naming consistent
Decide on lowercase and underscores early. Mixed styles like “Email” vs “email” split reports and make analytics harder to trust.
Build links faster
Use the Korisa UTM Link Builder to assemble encoded campaign URLs without hand-editing query strings.