This subdomain, zonesglobalfo.operations.dynamics.com, is part of Microsoft's Dynamics 365 platform. It redirects to login.windows.net, the official Microsoft login page used by Azure Active Directory. For businesses running operations on Dynamics, this is a normal and expected endpoint.
If you're wondering whether zonesglobalfo.operations.dynamics.com is a scam, the evidence points clearly to it being legitimate. The security is strong, the certificate is valid, and the hosting is on Microsoft's own infrastructure. The lack of a favicon or web archive is unremarkable for a subdomain that only redirects.
Treat this like any Microsoft login page: verify the URL matches, use multi-factor authentication, and never enter credentials on a page that doesn't match the official login. There's no sign of fraud or abuse here.