When your site is created, it has a default homepage. But you can set any page to be your site’s home page.
Before you set your site’s home page, you will need to create a page. A common format used for a home page is the General content type. Follow the instructions for creating a new General page.
Once you’ve created your home page, note the relative portion of the URL -- the portion that appears after the site URL.
For example, if the page has a URL of <<sitename>>.umn.edu/my-new-homepage, then the relative portion is my-new-homepage.