Informations Required/Optional

Hi, i have 3 question for a take account by google:

1) In the admin page the url “Website URL” would be recorded or it’s optional ?

2) Is it the main url of website on a post to be recorded: “example.com” or “example.com/mysuperpost281” ?

2) Others informations like:
“Business Name,Street Address 1 , City / Locality, State / Region…etc…) ?

Thanks a lot for your help !