Follow these steps to get the URL.
- Go to the top right corner, where you will see a Build website button
- Click the 'dropdown' on the Build website button
- Click the How to find the link you need to paste option.
- Go to the main page (see below) that you want built
- Click Share in the upper right corner
- Turn on Share to web → this makes the page public and Click Copy
That's it! That's your URL. Paste that into Simple.ink (in the navigation bar, on any page, you will find the field in which you can paste it) to build your website.