XF 1.3 How to add more robots definitions?

[imthebest]

From this suggestion: http://xenforo.com/community/threads/identify-pingdom-as-a-robot.77995/

I want to identify Pingdom as a robot. I got the user-agent: Pingdom.com_bot_version_1.4_(http://www.pingdom.com/)

What file(s) should I edit?

 

[Paul B]

http://xenforo.com/community/resources/custom-robots.3192/