'Get the cert and do some checks against it.
:param freq: A FuzzableRequest'

def audit(self, freq, orig_response):

    url = freq.get_url()
    domain = url.get_domain()
    if ('http' == url.get_protocol().lower()):
        return
    with self._plugin_lock:
        if (not (domain in self._already_tested)):
            self._already_tested.add(domain)
            self._analyze_ssl_cert(url, domain)
