POWERSHELL: Test https cert

TestHttpsCert.ps1

Clear-Host

$hostName = "www.microsoft.com"

$req = [System.Net.HttpWebRequest]::Create("https://$hostName")
$req.GetResponse().Dispose()
[System.Security.Cryptography.X509Certificates.X509Certificate2]$cert = $req.ServicePoint.Certificate
#$cert | Format-List *

$props = $cert | Select-Object Subject, 
    @{Name="ValidFrom"; Expression={$_.NotBefore}}, 
    @{Name="ValidTo"; Expression={$_.NotAfter}}, 
    @{Name="IsValid"; Expression={$_.Verify() -and (Get-Date) -le ([DateTime]::Parse($_.GetExpirationDateString())) }}, 
    @{Name="Encryption"; Expression={$_.SignatureAlgorithm.FriendlyName}}, 
    @{Name="DnsNames"; Expression={$_.DnsNameList.Unicode}}, 
    Issuer

$props | Out-Host