I have a page in wordpress that there is a form, which the user passes email and name. When the registration is completed, I will capture your data on a MailChimp, in my case, and redirect it to another page, which will have access to a simulation, for example.

However, I would like access to this redirected page to be made, ONLY, by my described form.

I do not want to be able to type in the url directly the address of the redirected page. Example: domain.com.br/simulado

If he did, he would enter the home again, or whatever. Anyway, how can this restriction be done?