A nanosite, also called a nanosite banner, is a smaller version of a microsite that cannot be opened in its own browser window but is part of an open website
. Such nanosites are fully functional. The advantage of nanosites is that the Internet user no longer has to leave the provider's site. This reduces the abandonment rates of
user purchases. For example, once a website visitor has decided to purchase a product, a corresponding nanosite can be opened in the same web window. This open nanosite offers, for example, a complete online shop through which the buyer can complete the entire purchase of the product.