$_SERVER['REMOTE_ADDR'] = 18.206.13.28
gethostbyaddr($_SERVER['REMOTE_ADDR']) = 18.206.13.28

$_SERVER['HTTP_X_FORWARDED_FOR'] = 
gethostbyaddr($_SERVER['HTTP_X_FORWARDED_FOR']) = 
$_SERVER['HTTP_VIA'] = 

$_SERVER['HTTP_USER_AGENT'] = CCBot/2.0 (https://commoncrawl.org/faq/)