You can recall information from URL parameters as part of your redirect path by typing the @ symbol and selecting the URL parameter you would like to add, it'll look like the following image.
You can also use them as query strings - for example, if you want to add source tracking to your URL.
Note! Remember that URL parameters get different values as respondents fill out your typeform. When you recall information in a typeform, you're recalling the value of an item, not its name. For this reason, when you use a URL parameter in a redirect link, make sure to recall the URL parameter after the field's name in the URL, as the image above shows.
For security reasons, you cannot use URL parameters as the entire URL.
You cannot use them as the domain part of the URL.
Remember that you can edit the text of the Submit button to say anything you like. For more information, see this article: Customize system messages.