Hi

Could you use HttpApplication.BeginRequest event?

    [ModuleDependency(typeof(InitializationModule))]
    public class SampleInitializer : IInitializableHttpModule
    {
        public void InitializeHttpEvents(HttpApplication application)
        {
            application.BeginRequest += ApplicationOnBeginRequest;
        }
        
        private void ApplicationOnBeginRequest(object sender, EventArgs eventArgs)
        {
            // You can access episerver APIs with ServiceLocator            
            var contentRepository = ServiceLocator.Current.GetInstance<IContentRepository>();
            
            // TODO your code here       
            throw new NotImplementedException();
        }

        public void Initialize(InitializationEngine context)
        {
        }

        public void Uninitialize(InitializationEngine context)
        {
        }
    }