most common robots user-agent

[kelly_boyce]

Hello,

I have a cloaking script that displays two different versions of my site depending on the user-agent. Can anyone plz tell me what are the most common spider user-agents? e.g. yahoo, google etc..

thanx

[mack]

Google = Googlebot
Altavista = Scooter
Inktomi = Slurp

Hope this helps.

[kelly_boyce]

any other common ones?

[mack]

[robotstxt.org...]

One or two more here ;-)

Mack.

[lindajames]

what spider is the user-agent "ODP" for?

[mack]

I dont think there is a spider with that user agent.

You may be thinking along the lines of "Robozilla". This is a sider used by the Open Directry Project (odp) for finding dead links within the directory.

Mack.

[Friday]

NEVER, EVER cloak by user_agent only. It's too easy for your competitors to mimic a user_agent and see exactly what you're doing and report you.

If you're going to cloak, cloak by IP address.
It's a pain, to be sure, keeping an up-to-date IP list, but getting "unbanned" by the SEs and then trying to climb back to the top of the SERPs is a MUCH bigger pain.

Cheers,
Friday