As Cyraz stated its on https:443 and to stable this you need to provide subscription, management certificate (to stable trust for communication) and certificate password.
You can go through the below blog for better clarity on it for setting up monitoring:-
https://blogs.technet.microsoft.com/cbernier/2013/10/23/monitoring-windows-azure-with-system-center-operations-manager-2012-get-me-started/
Cheers, Gourav Please remember to mark the replies as answers if it helped.