Restrict the usernames that new users may use when registering for your site.
This plugin allows you to restrict the usernames that new users may use when registering for your site.
If open registration is enabled for your site (via Settings -> General -> Membership ("Anyone can register")), WordPress allows visitors to register for an account on your blog. By default, any username they choose is allowed so long as it isn't an already existing account and it doesn't include invalid (i.e. non-alphanumeric) characters.
Possible reasons for wanting to restrict certain usernames:
When attempting to register with a restricted username, the visitor will be given an error notice that says: ERROR: This username is invalid. Please enter a valid username.
NOTE: This plugin does not put any restrictions on usernames that the admin chooses for users when creating user accounts from within the WordPress admin. This only restricts the names that users choose themselves when registering for your site.
SPECIAL NOTE: Many membership plugins implement their own user registration handling that often bypasses checks (and hooks) performed by WordPress. As such, it is unlikely that the plugin is compatible with them without special plugin-specific amendments.
Compatible with Multisite and BuddyPress as well.
Requires: 4.1 or higher
Compatible up to: 4.5.4
Last Updated: 4 months ago
Active Installs: 1,000+
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