Regular WHMCS page is still reachable


I have recently switched to WPMUDEV's WHMCS WP Integration and it's working well for me already. I have one question though; my non-WordPress WHMCS page still seems reachable and it has an entirely different look than my WordPress site.

WordPress is installed on:
WHMCS is at

WHMCS seems properly integrated into my WP site, but when I visit the vanilla WHMCS site shows up. Is there a way I can prevent that from happening?

Very Best,