Design debates usually end in opinion. "I think the hero image should be on the right." "I prefer a centered layout." These conversations are pointless without data. So we measured what actually correlates with conversions across thousands of landing pages.
Some findings confirmed conventional wisdom: single-column layouts outperform multi-column. Others surprised us: hero illustrations outperform stock photography by 35% in conversion rate. And some common "best practices" turned out to be myths — like the idea that you need a hero image at all (text-only heroes with a strong headline performed within 3% of image-based heroes).
The biggest design finding across our entire dataset: visual hierarchy matters more than aesthetics. Pages that clearly direct the eye — from headline to supporting copy to CTA — convert at 2.1x the rate of visually cluttered pages, regardless of how "pretty" the design is. A clean wireframe with good hierarchy beats a polished page with poor focus every time.
Here's what the data says about the design choices that actually move the needle.