How do I change the name jot form link?

How do I change the name jot form link 

Custom domain is only available for Enterprise account https://www.jotform.com/help/144-how-to-use-custom-domains-with-jotform-enterprise.

You can create a custom URL, but it will still show the main domain which is jotform.com. For more information, please see our guide here https://www.jotform.com/help/261-how-to-create-a-custom-url-of-a-form.