Depending on your plan, you can personalize the URL of your forms, as well as bringing your own custom domain.
If you have a Pro account, you can personalize the first part of the URL under Configure → Details. For example, the form https://ocezgtdm.paperform.co can be customized to https://newsletter.paperform.co.
If you have an Agency account you can bring your own domain, as well as customize the URL like on Pro. Forms on custom domains are structured a little differently. For example, if the custom domain was forms.mywebsite.com, then newsletter.paperform.co would be available on forms.mywebsite.com/newsletter.
To find out how to set up a custom domain, go to: