the first page that a visitor lands on when they access or enter your site. The entry page is the first page viewed on a visit.  For most websites, the entry page is quite often the homepage.  As a result you want to ensure that the user is able to find or will be at least able to navigate to the information that they are looking for from the entry page that they landed on.

It is important to try to reduce the bounce rate on entry pages so that visitors frequent additional pages and not just your entry page.  Many site owners and Webmaster will conduct usability tests to ensure that visitors are effectively engaging with their homepage and other popular entry pages on their site.