The number of registered users allowed on your Confluence site may be limited, depending on your license type. See the licensing and pricing overview on the Atlassian website. If you have an 'unlimited' license, then the number of registered users is not significant.

The number of registered users is also called the 'user count' or the number of users 'signed up currently'. It is determined as follows:

• It includes only those users who have the 'can use' global permission for the Confluence site. (See Global Permissions Overview for more about the 'can use' permission.)
• It does not include anonymous users, who may access your Confluence site if you have allowed anonymous access. (See Setting Up Public Access for more about allowing anonymous access.)
• It does not include deactivated users.