$req = [system.net.webrequest]::create($site_url)
    $req.usedefaultcredentials = $true
    try {
        $resultResp = $req.getresponse()
        
        Write-Debug $resultResp.StatusCode
        Write-Debug "url-result: $resultResp.StatusCode"
    }
    catch [system.net.webexception] {
	...
    }