In computer networking, the term server-side refers to operations that are performed by the server in a client-server relationship.

Typically, a server is a software program, such as a web server, that runs on a remote server, which is reachable by a user's local computer or workstation. Operations may be performed server-side because they require access to information or functionality that is not available on the client, or require typical behaviour that is unreliable when it is done client-side.

Server-side operations also include processing and storage of data from a client to a server, which can be viewed by a group of clients.

Example

Wikipedia uses client-side scripts to edit pages, try it yourself with edit this page, after pressing Save page the edit will be processed and stored server-side, making the edit readable for others.