Answers
- How to enumerate every site in a SharePoint tenant
What sites exist in this tenant, as far as I can see?
- How to get SharePoint site collection administrators
Who administers this SharePoint site?
- How to inspect SharePoint site storage and quota
How full is this site, and how much may it grow?
Beyond the answers
What else in this site touches this subject: the rules that consume these facts, the chapters that use them, and the analysis that argues about them.
rules
Field Guide chapters