What are common design mistakes that reduce conversions?

Common design mistakes that reduce conversions include placing CTAs only at the bottom of long pages (where most users never scroll), using low-contrast button colors that blend into the background, designing forms with 8 to 10 fields when 3 to 4 would suffice, and building navigation-heavy homepages that present too many choices and direct no user toward a specific goal.

Other conversion-damaging mistakes are: using generic stock photography that reduces trust rather than building it, failing to include mobile-specific conversion paths (like click-to-call buttons for service businesses), and building landing pages that match a campaign’s aesthetic but fail to restate the specific offer from the ad. Each of these issues is detectable through Hotjar behavior mapping and Google Analytics 4 funnel visualization before a full redesign is required.