This document analyzes traffic data from July to September 2015 for the top 10 presidential candidate websites. Bernie Sanders had the most overall traffic, while his and Ben Carson's traffic increased each month. Most traffic came from direct visits and email, though Carly Fiorina and Donald Trump relied more on search traffic. Candidates received little traffic from paid search or issue-based searches. Ben Carson led in social media traffic share. The document recommends candidates invest more in growing digital traffic and email lists.