Check if a domain is verified on Azure AD / Office 365

This PowerShell will help you to check if a domain is verified on an Azure AD / Office 365 Tenant

Possible Results:
1. Domain is Managed
2. Domain is Federated
3. Domain is not verified on Azure AD / Office 365

function Test-Domain {

      param(
             [Parameter(mandatory=$true)]
             [string]$DomainName
       )
       $descriptions = @{
              Unknown   = 'Domain does not exist in Office 365/Azure AD'
              Managed   = 'Domain is verified but not federated'
              Federated  = 'Domain is verified and federated'
       }
      $response = Invoke-WebRequest -Uri "https://login.microsoftonline.com/getuserrealm.srf?login=user@$DomainName&xml=1"
     if($response -and $response.StatusCode -eq 200) {
           $namespaceType = ([xml]($response.Content)).RealmInfo.NameSpaceType
           New-Object PSObject -Property @{
                    DomainName = $DomainName
                    NamespaceType = $namespaceType
                    Details = $descriptions[$namespaceType]
           } | Select-Object DomainName, NamespaceType, Details
    } else {
        Write-Error -Message 'Domain could not be verified. Please check your connectivity to login.microsoftonline.com'
    }
} 

cls  
echo "##################################################################"  
echo "#    Check if a domain is verified on Azure AD / Office 365      #"  
echo "#                                                                #"
echo "#    Possible Results:                                           #"
echo "#            1. Domain is Managed                                #"
echo "#            2. Domain is Federated                              #"
echo "#            3. Domain is not verified on Azure AD / Office 365  #" 
echo "#                                                                #"
echo "##################################################################"  
echo ""
echo ""
echo "Command to check a domain"
echo ""
echo "        Test-Domain microsoft.com"
echo ""

Script Info

Creater: Stephan Bisser

Download: Technet Gallery