title: Azure AD B2C - Sign out a user from all sessions
body: <p>I have 3 websites using a single B2C tenant. I have been asked to set it up so that when a user signs out of one website, sign out of them all.</p>
  
  <p>Likewise if their account is deleted.</p>
  
  <p>I thought that I would have to introduce a call to Azure on every request to determine if the user is still logged in, but as far as I can see, there isn't a Graph API endpoint that would allow me to determine the user status.</p>
  
  <p>Am I thinking about this the wrong way? Is there a way to do this easily using B2C, Graph API, the Active Directory client etc.?</p>
  
  <p>Maybe there is an option when setting up the OpenIdConnectAuthenticationOptions for example.</p>