Staging Site
Also called a staging environment, a staging site is a private copy of a live website. Developers use it to test changes like design updates and new functionality before they go live. Because the staging site is separate from the public site, they can test and fix problems without affecting real users.
A staging site is usually the last stop before changes go live. Once everything works as expected on staging, the developer pushes the changes to the live site.
See also: Preview mode
