This report provides an overview of the policies and procedures for addressing child sexual exploitation and abuse (CSEA) material across the global top-50 online content-sharing services. It finds that only 10 of the 50 services define CSEA with sufficient detail to understand what is prohibited on their services, and only 20 of the services issue a transparency report on CSEA. Even among those services, there are significant variations in what behaviour is captured in their definitions, and the metrics, methodology and frequency of transparency reports differ across platforms. While good practices exist, the report reveals a fragmented response to this complex and evolving problem, which limits comparability and makes it challenging to conduct a thorough assessment of the overall impact of platforms’ efforts to combat CSEA.