Powershell Website "Ping" using the winsystems web proxy

If you want to monitor/check (every 10s) continuesly if a website (in this exampe http://www.google.de) is reachable using powershell and also using the configured webproxy in your windows system, then you can use the following example:

while ($true) {
    $webClient = New-Object System.Net.WebClient
    $proxy = [System.Net.WebRequest]::GetSystemWebProxy()
    $proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials
    $webClient.Proxy = $proxy

    $proxyUri = $proxy.GetProxy([System.Uri]::new("http://www.google.de"))
    $proxyIp = $proxyUri.Host
    $proxyPort = $proxyUri.Port

    $startTime = Get-Date
    try {
        $response = $webClient.DownloadString("http://www.google.de")
        $endTime = Get-Date
        $latency = ($endTime - $startTime).TotalMilliseconds
        $statusCode = 200 # WebClient doesn't expose status code directly, assuming success here
        Write-Output "[$startTime] Latency: ${latency}ms, HTTP Status Code: $statusCode, Proxy:         $proxyIp :$proxyPort"
    } catch {
        $endTime = Get-Date
        $latency = ($endTime - $startTime).TotalMilliseconds
        $errorMessage = $_.Exception.Message
        Write-Output "[$startTime] Latency: ${latency}ms, Error: $errorMessage, Proxy: $proxyIp :$proxyPort"
    }

Start-Sleep -Seconds 10
}