PowerShell - Simple URL Check

I wanted a basic function that checks that a URL is valid.  So I created the following:

function IsValidUrl([string] $url)

{

    # Declare default return value

    $isValid = $false

   

    try

    {

        # Create a request object to "ping" the URL

        $request = [System.Net.WebRequest]::Create($url)

        $request.Method = "HEAD"

        $request.UseDefaultCredentials = $true

        # Capture the response from the "ping"

        $response = $request.GetResponse()

        $httpStatus = $response.StatusCode

   

        # Check the status code to see if the URL is valid

        $isValid = ($httpStatus -eq "OK")

    }

    catch

    {

        # Write error log

        Write-Host $Error[0].Exception

    }

   

    return $isValid

}