public function poll()
    {
        if (! count(config('eyewitness.application_domains'))) {
            $this->eye->logger()->debug('No application domain set for SSL monitor');
            return;
        }

        foreach (config('eyewitness.application_domains') as $domain) {
            if ($this->isValidDomain($domain)) {
                $this->startScan($domain);
            }
        }
    }