A landing page functions as a funnel, guiding visitors through a process until they decide what to do. The choice can be to buy something, attend a webinar, or sign up for an email. When someone clicks on your banner ad, PPC ad, or promotional email, they are taken to the first page they see. For a conversion to occur, your landing page must persuade visitors to stay and finish the intended activity, such as purchasing a product or completing a subscription form. Landing pages may contain reviews showing the value of a product or why you should sign up for an email list.