The mobile web is becoming many retailers' most visited digital channel, yet it converts at an average of just 1% — less than both desktop web and mobile apps. To increase mobile web conversion, retailers can no longer hope for the best with passive solutions such as responsive design. We evaluated the mobile websites of 12 retailers and found a widening gap between the Leaders and laggards. This report lays out which retailers get it right — and wrong — and what digital business executives can learn from them.