There's only one formula to get customers from your online marketing and digital marketing campaigns. RELEVANT TRAFFIC, from either highly targeted Facebook or Instagram ad campaigns or Search Engine Optimization (SEO); which is the highest source of quality traffic... SENT TO A HIGH CONVERTING OFFER.
Your offer needs to be crafted with compelling and persuasive copywriting that gets your prospects to take action, so that they become subscribers or sales.
The glue which holds these together has to be the website design or web development that you engaged in.
With a good foundation, when it comes to your website, you're looking at a good return on investment.