Deborah O'Malley is a top digital marketing influencer and leading authority in Conversion Rate Optimization.

She's founded GuessTheTest, the esteemed experimentation resource dedicated to sharing A/B test case study knowledge and insights. She also runs the award-winning optimization agency, ConvertExperts, where she helps clients get more leads, sales, and conversions.

A published author of six peer-reviewed journal articles, Deborah currently teaches analytics at Queen's University's prestigious business school, she also delivers workshops, corporate training sessions, and has a top-rated marketing analytics course on LinkedIn Learning.

When not out speaking about experimentation, Deborah can be found in the kitchen making homemade fudge or burning it off at the gym.