Unity internet checker

    public IEnumerator CheckInternetConnection(Action<bool> action){

        bool isConnected = false;

        WWW www = new WWW("Address you want to ping");
        yield return www;

        if (www.error != null) {
            isConnected = false;
        } else {
            if (www.text.Contains("Content")) {
                isConnected = true;
            } else {
                isConnected = false;
            }
        }

        if (action != null) {
            action (isConnected);
        }
    }