UTM Parameters Explained (With a Cheat Sheet)

UTM parameters are the oldest attribution technology on the web — and still the most reliable. But most teams use them inconsistently, which quietly corrupts every report downstream.

The five parameters

• utm_source — where the traffic comes from: newsletter, instagram, google
• utm_medium — the channel type: email, social, cpc, qr
• utm_campaign — the initiative: summer-2026, product-launch
• utm_term — paid search keyword (rarely needed elsewhere)
• utm_content — variant identifier for A/B tests: banner-a, footer-link

The consistency problem

utm_source=Instagram, utm_source=instagram, and utm_source=IG are three different sources to every analytics tool. The fix is boring: lowercase everything, hyphenate, and write the convention down.

Link-level UTMs: set once, never mistype again

Instead of hand-building tagged URLs for every share, attach UTMs to the short link itself. LinkForge appends them on redirect — and never overwrites parameters already present on the destination. One clean short link, correct tags every time, and the link stays readable when shared.

Cheat sheet

• Newsletter: source=newsletter, medium=email, campaign=weekly-digest
• Instagram bio: source=instagram, medium=social, campaign=evergreen-bio
• Paid search: source=google, medium=cpc, campaign=brand-terms
• Print QR: source=qr, medium=offline, campaign=summer-poster
• Partner blog: source=partnername, medium=referral, campaign=co-launch

Build tagged links in seconds with the free UTM builder inside every LinkForge link.