From your Manage Website page, click the toggle button next to the Visibility option, to set your website to Visible. Congrats, your website is public!
When this is set to Hidden no one can visit your website and it is private.
You can also control if you want your website to show up in Google search or Zola's search from your account settings under Privacy:
You can read more about search engine (ex. Google) settings here.
If you so choose, you can also make your website password-protected. Read more about password protection here!