I have a website, but it is parsed as fake googlebot useragent. I want to filter out fake googlebot by doing reverse DNS lookup. On a regular hosting, I could do this with
gethostbyaddr ($ _ SERVER ['REMOTE_ADDR'])
and was getting something like this crawl-66-249-79-164.googlebot.com But on CLoudFlare I get the ip address of the CLoudFlare server, not googlebot.