iRule to Block Google and other Search Engines

What you have will work for a single user agent, but you might want to add a number of them. You might try something like this and add all the user agents you want to block. I found a good list of these user agents here.

 

 

http://www.user-agents.org/index.shtml?t_z

 

 

 

when HTTP_REQUEST {

 

 

switch -glob [string tolower [HTTP::header "User-Agent]] {

 

"*googlebot*" -

 

"*yahooseeker" -

 

"*etc*" { drop }

 

default { return}

 

}