Is there a way to ad embeeded code to my site without a custom domain?

Hi there ilie , thank you for submitting to our Ucraft Forum!  

You can surely add external codes through the Custom HTML Element or Code Injection section; however, to have them active, you'll need to connect a Custom Domain to your website.

Ucraft is not responsible for the custom codes added to the website and going live by the Ucraft Subdomain, so to view them, you need to access the website through your own custom domain.

Feel free to let us know if you need help connecting the domain!