Abstract Children in the WHO European Region are extensively exposed to marketing of unhealthy products, including tobacco, alcohol, HFSS foods, and gambling, which negatively influences their dietary choices, behaviors, and perceptions of a norm, threatening their health rights. Recognizing the urgency to protect children’s developmental potential and rights, WHO has actively addressed this issue both within Europe and globally. In 2010, WHO issued recommendations for Member States on marketing foods and beverages to children. Building on these efforts, the CLICK framework for monitoring digital marketing to children was introduced in 2018. In 2023, WHO released guidelines urging countries to adopt comprehensive, mandatory policies to protect children from HFSS food marketing. Despite political commitments and policies, children and adolescents continue to be exposed to unhealthy product marketing, increasing their risk of NCDs as online activity rises. At the same time, while efforts have focused on restricting specific products, rapid changes in digital marketing strategies necessitate broader measures. Emerging trends include promoting brand loyalty among young children through brand characters and logos. Tools and support are urgently needed to monitor and implement WHO recommendations in online settings, including brand marketing. Despite WHO recommendations, few countries have implemented mandatory policies. Reliable monitoring mechanisms are essential. To address this gap, the WHO Regional Office for Europe developed the KidAd platform to monitor children’s exposure to digital advertising.