To get the true URL of your Clickfunnels Page, follow these simple steps.
In Clickfunnels, go to the funnel overview page and select the page from the Funnel Steps.
Click the preview button on your page.
Go to the preview page that opened up and click on the URL on your browser bar.
The URL you are looking for starts after /for_domain/ and goes all the way to the ? as shown in the example below.