Use a landing page when you're looking to test out your initial value proposition and idea.

Landing pages are best used as a place to lead traffic that is derived from online advertising, blog posts and other related content. They provide an opportunity not only to capture contact information but also quantitative data about click throughs, and views which give you insight into what people are interested in as you develop your solution.

Simple landing page design platforms like Instapage, Unbounce, Wix, Mailchimp, Leadpages or WordPress.