At the very first of the article I can simply say a coming soon page is the modern version of an under construction page. It is a fantastic way to showcase a glimpse of your forthcoming product to the web designing world very early. The main principle of a coming soon page is to work on a lean startup idea. The coming soon page of your website will act as a platform on which people will start seeing or talking about it. Whenever you will feel free; make them encouraged to sign up or to register for a beta test. It is practically a pre-marketing strategy which is very useful. In most of the cases you will see people are showing interest onto a product even before it is launched; just because of an excellent coming soon page of it.