docs: def website_verificable(self, website):
          """ True if the website is LetsEncrypt verificable: it should have the verification app
              on the /.well-known path """
          required_app = [self.LETSENCRYPT_VERIFY_APP_NAME, '/.well-known']
          for app in website['website_apps']:
              if app == required_app:
                  return True
          return False