Public Function IsURLGood(url As String)
    Dim request As Object
    Set request = CreateObject("WinHttp.WinHttpRequest.5.1")
    On Error GoTo haveError
    With request
        .Open "HEAD", url
        .Send
        IsURLGood = .Status
    End With
    Exit Function
haveError:
    IsURLGood = Err.Description
End Function