Get-SuperUserReaderStatus.ps1

function Get-DomainPrincipal
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory=$true,ParameterSetName='DistinguishedName')]
        [Parameter(Mandatory=$true,ParameterSetName='Name')]
        [Parameter(Mandatory=$true,ParameterSetName='SamAccountName')]
        [Parameter(Mandatory=$true,ParameterSetName='Sid')]
        [Parameter(Mandatory=$true,ParameterSetName='UserPrincipalName')]
        [Parameter(Mandatory=$true,ParameterSetName='Guid')]
        [ValidateSet("User", "Group")]
        [string]$PrincipalType,

        [Parameter(Mandatory=$true,ParameterSetName='DistinguishedName')]
        [string]$DistinguishedName,
        
        [Parameter(Mandatory=$true,ParameterSetName='Name')]
        [string]$Name,

        [Parameter(Mandatory=$true,ParameterSetName='SamAccountName')]
        [string]$SamAccountName,

        [Parameter(Mandatory=$true,ParameterSetName='Sid')]
        [string]$Sid,

        [Parameter(Mandatory=$true,ParameterSetName='UserPrincipalName')]
        [string]$UserPrincipalName,

        [Parameter(Mandatory=$true,ParameterSetName='Guid')]
        [string]$Guid
    )

    begin
    {
        Add-Type -AssemblyName System.DirectoryServices.AccountManagement 

        $principalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext( [System.DirectoryServices.AccountManagement.ContextType]::Domain )
    }
    process
    {
        if( $PrincipalType -eq "User" )
        {
            [System.DirectoryServices.AccountManagement.UserPrincipal]::FindByIdentity( $principalContext, [System.DirectoryServices.AccountManagement.IdentityType]::$($PSCmdlet.ParameterSetName),(Get-Variable -Name $PSCmdlet.ParameterSetName -ValueOnly) )
        }
        else
        {
            [System.DirectoryServices.AccountManagement.GroupPrincipal]::FindByIdentity( $principalContext, [System.DirectoryServices.AccountManagement.IdentityType]::$($PSCmdlet.ParameterSetName),(Get-Variable -Name $PSCmdlet.ParameterSetName -ValueOnly) )
        }
    }
    end
    {
    }
}

Add-PSSnapin Microsoft.SharePoint.PowerShell

$webApplications = @(Get-SPWebApplication)

foreach( $webApplication in $webApplications )
{
    $superReader = ($webApplication.Properties["portalsuperreaderaccount"] -split "\\")[-1]
    $superUser   = ($webApplication.Properties["portalsuperuseraccount"]   -split "\\")[-1]

    Get-DomainPrincipal -PrincipalType User -SamAccountName $superUser   | SELECT @{N="WebApp";e={$webApplication.Url}}, @{N="Role";e={"SuperReader"}}, SamAccountName, LastPasswordSet, Enabled
    Get-DomainPrincipal -PrincipalType User -SamAccountName $superReader | SELECT @{N="WebApp";e={$webApplication.Url}}, @{N="Role";e={"SuperUser"}},   SamAccountName, LastPasswordSet, Enabled
}