A staging environment is a test place where a team can try a website or app before people use its live version. It is like setting up a shop display in a quiet room before opening the doors.
The team can check whether a new page looks right and whether its main actions work. Staging often resembles the live setup, but it may use test accounts or sample information.
Passing checks in staging is helpful, though the live environment can still behave differently. Private staging links should also be treated carefully if they contain information that is not meant for everyone.