Ad copy limits and the UTM builder

Google responsive search ads: 3-15 headlines of up to 30 characters, 2-4 descriptions of up to 90, two display paths of up to 15. These are hard limits.

Meta image ads: we enforce recommended lengths that avoid truncation: primary text 125, headline 40, description 30.

Platforms update their specs from time to time; check their documentation before launching. Characters are counted as Unicode code points.

The UTM builder appends utm_source, utm_medium, utm_campaign and utm_content to your landing URL, keeping any query parameters already there.