public function updateSpammerBlacklist()
    {
        $url = 'https://raw.githubusercontent.com/matomo-org/referrer-spam-blacklist/master/spammers.txt';
        $list = Http::sendHttpRequest($url, 30);
        $list = preg_split("/\r\n|\n|\r/", $list);
        if (count($list) < 10) {
            throw new \Exception(sprintf(
                'The spammers list downloaded from %s contains less than 10 entries, considering it a fail',
                $url
            ));
        }

        Option::set(ReferrerSpamFilter::OPTION_STORAGE_NAME, serialize($list));
    }