Managing Site-Wide Permissions and Groups
Permissions determine what people can do on your Confluence site. Confluence recognizes permissions at site level and at space level, as well as page-level restrictions.
You can create groups and allocate people to them, so that you can assign permissions to a number of people at once. It's quicker to give a group access to Confluence than giving every member access individually.
You can also set the access levels for anonymous users or deny access to unlicensed users from linked applications, such as Jira Service Management.