Site(noun) the place where anything is fixed; situation; local position; as, the site of a city or of a house. ... Site(noun) a place fitted or chosen for any certain permanent use or occupation; as, a site for a church.
A website is a collection of publicly accessible, interlinked Web pages that share a single domain name. Websites can be created and maintained by an individual, group, business or organization to serve a variety of purposes.
on site(Adjective) Occurring at the site of a job, or at the location of the customer of a product or service, as opposed to at the vendor's factory or office.