Adblock’s impact on website traffic

Dr Johnny Ryan Content, Reports Leave a Comment

This whitepaper, “The Hidden Cost of Adblock”, presents the primary findings of research by Professor Benjamin Shiller (Brandeis University), Professor Joel Waldfogel (University of Minnesota and the National Bureau of Economic Research), and Dr Johnny Ryan (PageFair). It reveals that adblock has a hidden cost: it not only reduces small and medium publishers’ revenue, it reduces their traffic too. Every 1% increase in adblocked web traffic produced a 0.67% decrease in site traffic for small and medium sites. Significant adblock usage by a website’s audience usually causes a temporary boost to its page traffic. This short term effect occurs because adblock users can enjoy the site without advertising. Over three years the majority of websites sites with high adblock rates saw their traffic levels significantly decrease relative to other websites.…