Performance Marketing ComScore Is Working With xAd to Measure Foot Traffic From Online Ads Will focus on location lift and eventually revenue By Marty Swant June 22, 2016 ComScore and xAd (a location-based mobile ad network) are beginning to measure how effective xAd's mobile campaigns are for driving in-store visits. Marty Swant @martyswant martin.swant@adweek.com Marty Swant is a former technology staff writer for Adweek. Recommended articles