docs: def urlvoid_check(name, api_key):
      """Checks URLVoid.com for info on a domain"""
      if not is_fqdn(name):
          return None
  
      url = 'http://api.urlvoid.com/api1000/{key}/host/{name}'.format(key=api_key, name=name)
      response = requests.get(url)
      tree = ET.fromstring(response.text)
      if tree.find('./detections/engines'):
          return [e.text for e in tree.find('./detections/engines')]
      else:
          return None