This formula can be used for long sales page and also for a typical home page.
Attention. State the biggest challenge and how your USP helps to overcome it. (The biggest problem and the biggest benefit)
Interest. Reasons why the reader should be interested in what you have to say.
Credibility. List the reasons why the reader should believe you.
Proof. Show that what you are saying is true. Use testimonials, feedback, case studies, and reviews.
Benefits. Use bullet points to list all your benefits.
Scarcity. Make the product limited or restricted.
Action. Tell your readers the concrete and clear steps they need to take next.
Warn. Explain the consequences of not taking action.
Now. Encourage them to take action right away.