Authorizer is a WordPress plugin designed to enhance the security and access control of your website. It allows administrators to restrict site access to specific users, making it particularly useful for educational institutions, such as universities, where access needs to be limited to enrolled students. The plugin replaces the standard WordPress login system with a more robust authentication method that can integrate with external servers like Google, CAS, LDAP, or OAuth2 providers.

In addition to providing flexible authentication options, Authorizer includes features to manage login attempts. Administrators can limit invalid login attempts, thereby reducing the risk of bots and unauthorized access to user accounts. The plugin also supports the use of shortcodes, allowing for the integration of login forms into custom pages. With its free license and variety of authentication methods, Authorizer is a valuable tool for enhancing WordPress site security.