To verify google bot should do this:
Run a reverse DNS lookup on the accessing IP address from your logs, using the host command. Verify that the domain name is in either googlebot.com or google.com Run a forward DNS lookup on the domain name retrieved in step 1 using the host command on the retrieved domain name. Verify that it is the same as the original accessing IP address from your logs.
But what should I do to verify other bots like ashref, semrush and uptime.com? The reverse domain return meaningless host like ip170.ip-54-36-149.eu
I want to block any unverified bot. So is there any way to verify those?
