Imagine surveying thousands of people to identify health needs and yet providing no intervention. This is the norm in survey research. It would be shocking in health services and is unnecessary in the age of digital surveys and digital health interventions. Digital interventions are highly scalable and are increasingly important in health strategies. However, uptake of these outside of trials is typically disappointing and may increase disparities. We will investigate methodologies for integrating opt-in digital interventions to online health surveys. We will apply and implement this in a modified Youth2000 survey and analyse results with adolescents and digital interventions providers. We will explore uptake of varied digital interventions among participant groups; examine impact on disparities and identify opportunities to improve intervention uptake. We will analyse the costs and benefits of integrating opt-in interventions in digital health surveys, and examine the potential of this, for both participants and for research.