Your lead capture forms (embedded or not embedded) have the option to redirect the client filling out your form to a different web page outside of Dubsado of your choosing!
To set this up, head to TEMPLATES >> FORMS >> and head into the lead capture section to edit to build a new one. On the right hand side, when in edit mode, you will see the redirect option under SETTINGS. Drop that hyperlink in there. Be sure it includes the https:// or http://